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1. Optical modelling and analysis of the Q and U bolometric interferometer for cosmology

Author

Mikhail Stolpovskiy, Emory F. Bunn, Federico Pezzotta, O. Rigaut, M.-A. Bigot-Sazy, A.-A. Drilien, J.D. Murphy, Simon J. Melhuish, Martin Gamboa, Laurence P. Sadwick, Alessandro Schillaci, A. Baù, N. Holtzer, Nathanaël Bleurvac, A. Mennella, F. Voisin, Beatriz García, X. Garrido, E. Guerrard, Giuseppe D' Alessandro, Vladimir V. Luković, R. Luterstein, D. Burke, D. Prêle, D. Bennett, Alberto Etchegoyen, C. Kristukat, Delphine Néel, Paolo de Bernardis, J. Bonaparte, Massimo Gervasi, Alessandro Paiella, L. Montier, M. González, P. Battaglia, Y. Giraud-Héraud, A. Zullo, Giampaolo Pisano, Maria Salatino, D. Auguste, E. Jules, M. Gaspard, Olivier Perdereau, D. Viganò, P. Ringegni, A. Gault, M. Gómez Berisso, F. Piacentini, Jean-Philippe Bernard, J. Kaplan, F. Incardona, Cristian Franceschet, Matthieu Tristram, D. T. Hoang, Lucio Piccirillo, Jonathan Aumont, François Couchot, B. Bélier, F. Suarez, E. Olivieri, P. Chanial, C. Scóccola, S. Banfi, Carole Tucker, Sophie Henrot-Versille, G. Amico, H. Pastoriza, Robert A. Watson, G. de Gasperis, Marcin Gradziel, Nicola Vittorio, D. Harari, D. Buzi, G. Bordier, G. Barbarán, J.-P. Thermeau, Victor Haynes, Créidhe O'Sullivan, Laurent Bergé, T. Louis, J. Bonis, V. Truongcanh, L. Grandsire, Marco De Petris, Peter T. Timbie, Andrei Korotkov, Marco Bersanelli, G. Polenta, Mario Zannoni, Damien Rambaud, Gustavo E. Romero, A. Pelosi, F. Wicek, Mark McCulloch, S. Scully, M. De Leo, L. Dumoulin, Francesco Cavaliere, Alessandro Buzzelli, A. Lowitz, C. Perbost, Alessandro Coppolecchia, François Pajot, A. Fasciszewski, Bruno Maffei, Martin Giard, Elia S. Battistelli, D. Gayer, Tianxin Yang, Gregory S. Tucker, M. C. Medina, A. Passerini, Jean Christophe Hamilton, A. Tartari, L. M. Mundo, Michel Piat, S. Marnieros, Eimante Kalinauskaite, A. Mattei, J. Lande, F. Columbro, R. Puddu, S. Spinelli, Andrew May, Luca Lamagna, E. Bréelle, J. Anthony Murphy, Rocco D'Agostino, S. Loucatos, Gabriele Coppi, Steve Torchinsky, Silvia Masi, A. Di Donato, C. Chapron, R. Charlassier, L. Mele, Sadwick L.P.,Yang T., Burke, D, Gayer, D, Kalinauskaite, E, O'Sullivan, C, Murphy, J, Scully, S, De Petris, M, De Leo, M, Mennella, A, Torchinsky, S, Zannoni, M, Amico, G, Auguste, D, Aumont, J, Banfi, S, Barbaran, G, Battaglia, P, Battistelli, E, Bau, A, Belier, B, Bennett, D, Berge, L, Bernard, J, Bersanelli, M, Bigot-Sazy, M, Bleurvac, N, Bonaparte, J, Bonis, J, Bordier, G, Breelle, E, Bunn, E, Buzi, D, Buzzelli, A, Cavaliere, F, Chanial, P, Chapron, C, Charlassier, R, Columbro, F, Coppi, G, Coppolecchia, A, Couchot, F, D'Alessandro, G, D'Agostino, R, De Bernardis, P, De Gasperis, G, Di Donato, A, Drilien, A, Dumoulin, L, Etchegoyen, A, Fasciszewski, A, Franceschet, C, Gamboa-Lerena, M, Garcia, B, Garrido, X, Gaspard, M, Gault, A, Gervasi, M, Giard, M, Giraud-Heraud, Y, Gomez Berisso, M, Gonzalez, M, Gradziel, M, Grandsire, L, Guerrard, E, Hamilton, J, Harari, D, Haynes, V, Henrot-Versille, S, Hoang, D, Holtzer, N, Incardona, F, Jules, E, Kaplan, J, Korotkov, A, Kristukat, C, Lamagna, L, Lande, J, Loucatos, S, Louis, T, Lowitz, A, Lukovic, V, Luterstein, R, Maffei, B, Marnieros, S, Masi, S, Mattei, A, May, A, Mcculloch, M, Medina, M, Mele, L, Melhuish, S, Mundo, L, Montier, L, Neel, D, Olivieri, E, Paiella, A, Pajot, F, Passerini, A, Pastoriza, H, Pelosi, A, Perbost, C, Perdereau, O, Pezzotta, F, Piacentini, F, Piat, M, Piccirillo, L, Pisano, G, Polenta, G, Prele, D, Puddu, R, Rambaud, D, Rigaut, O, Ringegni, P, Romero, G, Salatino, M, Schillaci, A, Scoccola, C, Spinelli, S, Stolpovskiy, M, Suarez, F, Tartari, A, Thermeau, J, Timbie, P, Tristram, M, Truongcanh, V, Tucker, G, Tucker, C, Vigano, D, Vittorio, N, Voisin, F, Watson, B, Wicek, F, Zullo, A, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre de Nanosciences et de Nanotechnologies [Orsay] (C2N), Université Paris-Sud - Paris 11 (UP11)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)

Subjects
Cosmic microwave background, Astrophysics::Cosmology and Extragalactic Astrophysics, CMB, 01 natural sciences, 7. Clean energy, Radio spectrum, law.invention, Optics, law, 0103 physical sciences, B-modes, Electronic, Optical Modelling, Black-body radiation, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Optical and Magnetic Materials, Electrical and Electronic Engineering, 010306 general physics, 010303 astronomy & astrophysics, Polarisation, Physics, business.industry, Applied Mathematics, Bolometer, Astrophysics::Instrumentation and Methods for Astrophysics, bolometric interferometry, Cosmology, Simulation, Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Computer Science Applications1707 Computer Vision and Pattern Recognition, Image plane, Redshift, Interferometry, B-mode, Millimeter, business
Abstract

International audience; Remnant radiation from the early universe, known as the Cosmic Microwave Background (CMB), has been redshifted and cooled, and today has a blackbody spectrum peaking at millimetre wavelengths. The QUBIC (Q&U Bolometric Interferometer for Cosmology) instrument is designed to map the very faint polaristion structure in the CMB. QUBIC is based on the novel concept of bolometric interferometry in conjunction with synthetic imaging. It will have a large array of input feedhorns, which creates a large number of interferometric baselines. The beam from each feedhorn is passed through an optical combiner, with an off-axis compensated Gregorian design, to allow the generation of the synthetic image. The optical-combiner will operate in two frequency bands (150 and 220 GHz with 25% and 18.2 % bandwidth respectively) while cryogenically cooled TES bolometers provide the sensitivity required at the image plane. The QUBIC Technical Demonstrator (TD), a proof of technology instrument that contains 64 input feed-horns, is currently being built and will be installed in the Alto Chorrillos region of Argentina. The plan is then for the full QUBIC instrument (400 feed-horns) to be deployed in Argentina and obtain cosmologically significant results. In this paper we will examine the output of the manufactered feed-horns in comparison to the nominal design. We will show the results of optical modelling that has been performed in anticipation of alignment and calibration of the TD in Paris, in particular testing the validity of real laboratory environments. We show the output of large calibrator sources (50 ° full width haf max Gaussian beams) and the importance of accurate mirror definitions when modelling large beams. Finally we describe the tolerance on errors of the position and orientation of mirrors in the optical combiner.

Published
2018

2. QUBIC - the Q&U Bolometric Interferometer for Cosmology: A novel way to look at the polarized Cosmic Microwave Background

Author

M. Piat, A. Passerini, M. W. Ng, J. Rodriguez Martino, A. Ghribi, Alessandro Buzzelli, M. Giard, N. Bleurvacq, F. Piacentini, S. Melhuish, L. Mele, P. Chanial, J.-Ch. Hamilton, Maria Salatino, R. Puddu, L. Grandsire, J. Lande, Peter T. Timbie, Jonathan Aumont, Carole Tucker, B. Watson, Bruno Maffei, Andrei Korotkov, Damien Rambaud, A. Zullo, O. Rigaut, C. Perbost, Massimo Gervasi, Mark McCulloch, S. Marnieros, A. Baù, A. Lowitz, Giampaolo Pisano, D. Néel, G. Bordier, M. De Petris, P. Battaglia, N. Krachmalnicoff, L. Montier, A. Mennella, D. Cammilleri, O. Perdereau, Michele De Leo, Créidhe O'Sullivan, Cristian Franceschet, F. Incardona, D. Bennett, Peter A. R. Ade, D. Buzi, Victor Haynes, F. Couchot, F. Suarez, G. S. Tucker, N. Vittori, M. Tristram, D. Harari, Lucio Piccirillo, B. Bélier, Jean Kaplan, Sophie Henrot-Versille, S. Loucatos, Luca Lamagna, L. Dumoulin, Alessandro Paiella, Bruce Rafael Mellado Garcia, Alessandro Coppolecchia, F. Columbro, A. Tartari, D. Viganò, J. Brossard, Rocco D'Agostino, Andrew May, F. Pajot, Elia S. Battistelli, D. Gayer, L. Bergé, Silvia Masi, D. Burke, Marcin Gradziel, N. Holtzer, Gabriele Coppi, Steve Torchinsky, Giuseppe D'Alessandro, M. C. Medina, C. Chapron, A. Etchegoyen, Marco Bersanelli, Mario Zannoni, A. Pelosi, S. Scully, G. de Gasperis, Bigot-Sazy, J.-Ph. Bernard, A. Gault, S. Banfi, Vladimir V. Luković, Francesco Cavaliere, E. Bunn, D. Prêle, A. Murphy, F. Voisin, M. Stolpovskiy, Gustavo E. Romero, F. Del Torto, Y. Giraud-Héraud, P. de Bernardis, A. Schillaci, T. Decourcelle, Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Mennella, A, Ade, P, Aumont, J, Banfi, S, Incardona, F, Battaglia, P, Battistelli, E, Baù, A, Bélier, B, Bennett, D, Bergé, L, Bernard, J, Bersanelli, M, Bigot-Sazy, M, Bleurvacq, N, Bordier, G, Brossard, J, Bunn, E, Burke, D, Buzi, D, Buzzelli, A, Cammilleri, D, Cavaliere, F, Chanial, P, Chapron, C, Columbro, F, Coppi, G, Coppolecchia, A, Couchot, F, D'Agostino, R, D'Alessandro, G, De Bernardis, P, De Gasperis, G, De Leo, M, De Petris, M, Decourcelle, T, Del Torto, F, Dumoulin, L, Etchegoyen, A, Franceschet, C, Garcia, B, Gault, A, Gayer, D, Gervasi, M, Ghribi, A, Giard, M, Giraud-Héraud, Y, Gradziel, M, Grandsire, L, Hamilton, J, Harari, D, Haynes, V, Henrot-Versillé, S, Holtzer, N, Kaplan, J, Korotkov, A, Krachmalnicoff, N, Lamagna, L, Lande, J, Loucatos, S, Lowitz, A, Lukovic, V, Maffei, B, Marnieros, S, Martino, J, Masi, S, May, A, Mcculloch, M, Medina, M, Mele, L, Melhuish, S, Montier, L, Murphy, A, Néel, D, Ng, M, O'Sullivan, C, Paiella, A, Pajot, F, Passerini, A, Pelosi, A, Perbost, C, Perdereau, O, Piacentini, F, Piat, M, Piccirillo, L, Pisano, G, Prêle, D, Puddu, R, Rambaud, D, Rigaut, O, Romero, G, Salatino, M, Schillaci, A, Scully, S, Stolpovskiy, M, Suarez, F, Tartari, A, Timbie, P, Torchinsky, S, Tristram, M, Tucker, C, Tucker, G, Viganò, D, Vittori, N, Voisin, F, Watson, B, Zannoni, M, and Zullo, A

Subjects
cosmological model, interferometer, Cosmic microwave background, Cosmic background radiation, FOS: Physical sciences, 02 engineering and technology, cosmic background radiation, 01 natural sciences, 7. Clean energy, Cosmology, law.invention, 010309 optics, FIS/05 - ASTRONOMIA E ASTROFISICA, bolometer, law, 0103 physical sciences, Astronomical interferometer, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation and Methods for Astrophysics (astro-ph.IM), Astrophysics::Galaxy Astrophysics, Physics, polarization, Gravitational wave, Bolometer, Astrophysics::Instrumentation and Methods for Astrophysics, gravitational radiation: primordial, Cosmic Microwave Background, Polarimetry, Interferometry, Bolometers, Astronomy, 021001 nanoscience & nanotechnology, Polarization (waves), sensitivity, calibration, Interferometry, duality, 0210 nano-technology, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

In this paper we describe QUBIC, an experiment that takes up the challenge posed by the detection of primordial gravitational waves with a novel approach, that combines the sensitivity of state-of-the art bolometric detectors with the systematic effects control typical of interferometers. The so-called "self-calibration" is a technique deeply rooted in the interferometric nature of the instrument and allows us to clean the measured data from instrumental effects. The first module of QUBIC is a dual band instrument (150 GHz and 220 GHz) that will be deployed in Argentina during the Fall 2018., Presented at the EPS Conference on High Energy Physics, Venice (Italy), 5-12 July 2017 Accepted for publication in conference proceedings

Published
2017

3. Controlling the Leakage-Current of Low Temperature Germanium Detectors Using XeF $$_{2}$$ 2 Dry Etching

Author

S. Marnieros, M.-C. Piro, A. A. Drillien, O. Rigaut, L. Dumoulin, L. Bergé, A. Broniatowski, N. Holtzer, and E. Olivieri

Subjects
Physics, business.industry, Detector, Xenon difluoride, chemistry.chemical_element, Germanium, EDELWEISS, Condensed Matter Physics, 7. Clean energy, Atomic and Molecular Physics, and Optics, chemistry.chemical_compound, chemistry, Ionization, Electrode, Optoelectronics, General Materials Science, Dry etching, Atomic physics, business, Leakage (electronics)
Abstract

Ionization detectors, based on the drift and collection of charges in high purity Germanium crystals (HP-Ge), are commonly used for gamma and particle detection. In the field of very low temperature detectors, several major experiments, like EDELWEISS or CDMS, are using such devices combined with a simultaneous measurement of the detector heat pulses, to search for dark matter in the universe. The leakage current between the charge collecting electrodes of the detectors must be kept as low as possible to preserve performance in terms of high resolution and low threshold. We present results concerning the surface treatment of EDELWEISS HP-Ge crystals, aiming at the reduction of their leakage currents at temperatures below 4 K. Among the explored solutions, a post-process dry-etching using XeF\(_{2}\) (xenon difluoride) gives very promising and reproducible results. The modification of the Ge surface by this treatment and its effect on the low temperature leakage currents are discussed.

Published
2013

4. Optical design and modelling of the QUBIC instrument, a next-generation quasi-optical bolometric interferometer for cosmology

Author

A. Ghribi, L. Montier, D. Cammileri, D. Burke, L. Grandsire, J. Brossard, Peter T. Timbie, J. A. Murphy, Créidhe O'Sullivan, Giampaolo Pisano, N. Bleurvacq, J. C. Hamilton, P. Battaglia, J. Kaplan, Emory F. Bunn, G. Bordier, Marco Bersanelli, Alessandro Schillaci, Mario Zannoni, M. Giard, J.-Ph. Bernard, S. Scully, B. Bélier, J. Lande, O. Rigaut, T. Decourcelle, Giuseppe D'Alessandro, M.-A. Bigot-Sazy, A. Mennella, D. Buzi, A. Gault, Cristian Franceschet, M. Piat, O. Perdereau, D. Prêle, D. Bennet, Victor Haynes, L. Dumoulin, S. Banfi, J. Martino, F. Voisin, Lucio Piccirillo, D. Viganò, Sophie Henrot-Versille, M. W. Ng, Y. Giraud-Héraud, Massimo Gervasi, Andrei Korotkov, Marcin Gradziel, F. Piacentini, Maria Salatino, P. Chanial, Damien Rambaud, Jonathan Aumont, Simon J. Melhuish, A. Baù, N. Holtzer, M. De Petris, Mark McCulloch, M. Stolpovskiy, F. Del Torto, S. Marnieros, Bruno Maffei, P. de Bernardis, F. Pajot, Elia S. Battistelli, D. Gayer, Francesco Cavaliere, Gregory S. Tucker, L. Bergé, Alessandro Coppolecchia, A. Lowitz, M. Tristram, C. Perbost, B. Watson, R. Puddu, F. Couchot, D. Néel, A. Passerini, A. Tartari, C. Chapron, Silvia Masi, Holland, WS, Scully, S, Burke, D, O'Sullivan, C, Gayer, D, Gradziel, M, Murphy, J, De Petris, M, Buzi, D, Zannoni, M, Mennella, A, Gervasi, M, Tartari, A, Maffei, B, Aumont, J, Banfi, S, Battaglia, P, Battistelli, E, Bau', A, Bélier, B, Bennet, D, Bergé, L, Bernard, J, Bersanelli, M, Bigot Sazy, M, Bleurvacq, N, Bordier, G, Brossard, J, Bunn, E, Cammileri, D, Cavaliere, F, Chanial, P, Chapron, C, Coppolecchia, A, Couchot, F, D'Alessandro, G, De Bernardis, P, Decourcelle, T, Del Torto, F, Dumoulin, L, Franceschet, C, Gault, A, Ghribi, A, Giard, M, Giraud Héraud, Y, Grandsire, L, Hamilton, J, Haynes, V, Henrot Versillé, S, Holtzer, N, Kaplan, J, Korotkov, A, Lande, J, Lowitz, A, Marnieros, S, Martino, J, Masi, S, Mcculloch, M, Melhuish, S, Montier, L, Néel, D, Ng, M, Pajot, F, Passerini, A, Perbost, C, Perdereau, O, Piacentini, F, Piat, M, Piccirillo, L, Pisano, G, Prêle, D, Puddu, R, Rambaud, D, Rigaut, O, Salatino, M, Schillaci, A, Stolpovskiy, M, Timbie, P, Tristram, M, Tucker, G, Viganò, D, Voisin, F, and Watson, B

Subjects
Bolometric interferometry, QUBIC, Aperture, Cosmic microwave background, Condensed Matter Physic, Astrophysics::Cosmology and Extragalactic Astrophysics, CMB, 01 natural sciences, Cosmology, law.invention, 010309 optics, Telescope, FIS/05 - ASTRONOMIA E ASTROFISICA, symbols.namesake, Optics, law, 0103 physical sciences, Astronomical interferometer, Stokes parameters, Electrical and Electronic Engineering, Planck, 010303 astronomy & astrophysics, Physics, business.industry, Electronic, Optical and Magnetic Material, Astrophysics::Instrumentation and Methods for Astrophysics, B-modes, Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Computer Science Applications1707 Computer Vision and Pattern Recognition, Applied Mathematics, Applied Mathematic, Interferometry, FIS/01 - FISICA SPERIMENTALE, B-mode, symbols, business
Abstract

Big Bang cosmologies predict that the cosmic microwave background (CMB) contains faint temperature and polarisation anisotropies imprinted in the early universe. ESA's PLANCK satellite has already measured the temperature anisotropies1 in exquisite detail; the next ambitious step is to map the primordial polarisation signatures which are several orders of magnitude lower. Polarisation E-modes have been measured2 but the even-fainter primordial B-modes have so far eluded detection. Their magnitude is unknown but it is clear that a sensitive telescope with exceptional control over systematic errors will be required. QUBIC3 is a ground-based European experiment that aims to exploit the novel concept of bolometric interferometry in order to measure B-mode polarisation anisotropies in the CMB. Beams from an aperture array of corrugated horns will be combined to form a synthesised image of the sky Stokes parameters on two focal planes: one at 150 GHz the other at 220 GHz. In this paper we describe recent optical modelling of the QUBIC beam combiner, concentrating on modelling the instrument point-spread-function and its operation in the 220-GHz band. We show the effects of optical aberrations and truncation as successive components are added to the beam path. In the case of QUBIC, the aberrations introduced by off-axis mirrors are the dominant contributor. As the frequency of operation is increased, the aperture horns allow up to five hybrid modes to propagate and we illustrate how the beam pattern changes across the 25% bandwidth. Finally we describe modifications to the QUBIC optical design to be used in a technical demonstrator, currently being manufactured for testing in 2016.

Published
2016

5. QUBIC: A Fizeau Interferometer Targeting Primordial B-Modes

Author

J.-Ph. Bernard, M.-A. Bigot-Sazy, Lucio Piccirillo, D. Buzi, J. Martino, F. Voisin, D. Prêle, Maria Salatino, J.-Ch. Hamilton, L. Montier, A. Mennella, L. Dumoulin, M. Giard, C. Perbost, F. Piacentini, D. Bennett, A. Lowitz, D. Viganò, Y. Giraud-Héraud, Francesco Cavaliere, Jonathan Aumont, Emory F. Bunn, P. Chanial, P. Battaglia, Gregory S. Tucker, N. Bleurvacq, J. Kaplan, G. Bordier, Massimo Gervasi, B. Bélier, T. Decourcelle, Alessandro Schillaci, Simon J. Melhuish, Cristian Franceschet, A. Baù, N. Holtzer, Andrei Korotkov, Damien Rambaud, Giuseppe D'Alessandro, Mark McCulloch, S. Marnieros, Silvia Masi, M. Piat, M. Stolpovskiy, F. Del Torto, P. de Bernardis, Giampaolo Pisano, C. Chapron, A. Ghribi, A. Gault, J. Lande, L. Grandsire, S. Banfi, Peter T. Timbie, D. Cammilleri, D. Néel, Victor Haynes, Marcin Gradziel, O. Rigaut, A. Passerini, A. Tartari, M. De Petris, M. W. Ng, Marco Bersanelli, Mario Zannoni, S. Scully, Anna Murphy, B. Watson, J. Brossard, Créidhe O'Sullivan, Laurent Bergé, Bruno Maffei, F. Pajot, Alessandro Coppolecchia, Elia S. Battistelli, D. Gayer, CSNSM INSTRU, Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM PS1), Université Paris-Saclay-Univ. Paris-Sud-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Tartari, A, Aumont, J, Banfi, S, Battaglia, P, Battistelli, E, Bau', A, Bélier, B, Bennett, D, Bergé, L, Bernard, J, Bersanelli, M, Bigot Sazy, M, Bleurvacq, N, Bordier, G, Brossard, J, Bunn, E, Buzi, D, Cammilleri, D, Cavaliere, F, Chanial, P, Chapron, C, Coppolecchia, A, D’Alessandro, G, De Bernardis, P, Decourcelle, T, Del Torto, F, De Petris, M, Dumoulin, L, Franceschet, C, Gault, A, Gayer, D, Gervasi, M, Ghribi, A, Giard, M, Giraud Héraud, Y, Gradziel, M, Grandsire, L, Hamilton, J, Haynes, V, Holtzer, N, Kaplan, J, Korotkov, A, Lande, J, Lowitz, A, Maffei, B, Marnieros, S, Martino, J, Masi, S, Mcculloch, M, Melhuish, S, Mennella, A, Montier, L, Murphy, A, Néel, D, Ng, M, O’Sullivan, C, Pajot, F, Passerini, A, Perbost, C, Piacentini, F, Piat, M, Piccirillo, L, Pisano, G, Prêle, D, Rambaud, D, Rigaut, O, Salatino, M, Schillaci, A, Scully, S, Stolpovskiy, M, Timbie, P, Tucker, G, Viganò, D, Voisin, F, Watson, B, and Zannoni, M

Subjects
Fizeau interferometer, Cosmic microwave background, Context (language use), 01 natural sciences, law.invention, FIS/05 - ASTRONOMIA E ASTROFISICA, Optics, law, Atomic and Molecular Physics, 0103 physical sciences, General Materials Science, [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat], 010306 general physics, 010303 astronomy & astrophysics, Polarisation, [PHYS]Physics [physics], Physics, B-mode, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Materials Science (all), business.industry, Emphasis (telecommunications), Bolometer, Interferometry, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], and Optics, Cosmic microwave background · Polarisation · B-mode, business, Multipole expansion, Sensitivity (electronics)
Abstract

Q and U Bolometric Interferometer for Cosmology (QUBIC) is a Fizeau interferometer sensitive to linear polarisation, to be deployed at the Antarctic station of Dome C. This experiment in its final configuration will be operated at 97, 150 and 220GHz and is intended to target CMB primordial B-modes in a multipole window 20 < ℓ< 150. A sensitivity of r= 0.05 (95% CL) can be reached by the first module alone, after 2years of operation. Here we review in particular its working principles, and we show how the QUBIC interferometric configuration can be considered equivalent to a pupil-plane filtered imaging system. In this context, we show how our instrument can be self-calibrated. Finally, we conclude by showing an overview of the first dual-band module (150/220GHz), which will serve also as a demonstrator for the subsequent units, and review the technological choices we made for each subsystem, with particular emphasis on the detection system.

Published
2016

6. Latest Progress on the QUBIC Instrument

Author

A. Ghribi, J. Aumont, E. S. Battistelli, A. Bau, B. Bélier, L. Bergé, J.-Ph. Bernard, M. Bersanelli, M.-A. Bigot-Sazy, G. Bordier, E. T. Bunn, F. Cavaliere, P. Chanial, A. Coppolecchia, T. Decourcelle, P. De Bernardis, M. De Petris, A.-A. Drilien, L. Dumoulin, M. C. Falvella, A. Gault, M. Gervasi, M. Giard, M. Gradziel, L. Grandsire, D. Gayer, J.-Ch. Hamilton, V. Haynes, Y. Giraud-Héraud, N. Holtzer, J. Kaplan, A. Korotkov, J. Lande, A. Lowitz, B. Maffei, S. Marnieros, J. Martino, S. Masi, A. Mennella, L. Montier, A. Murphy, M. W. Ng, E. Olivieri, F. Pajot, A. Passerini, F. Piacentini, M. Piat, L. Piccirillo, G. Pisano, D. Prêle, D. Rambaud, O. Rigaut, C. Rosset, M. Salatino, A. Schillaci, S. Scully, C. O’Sullivan, A. Tartari, P. Timbie, G. Tucker, L. Vibert, F. Voisin, B. Watson, M. Zannoni, Ghribi, A, Aumont, J, Battistelli, E, Bau', A, Bélier, B, Bergé, L, Bernard, J, Bersanelli, M, Bigot Sazy, M, Bordier, G, Bunn, E, Cavaliere, F, Chanial, P, Coppolecchia, A, Decourcelle, T, Bernardis, P, Petris, M, Drilien, A, Dumoulin, L, Falvella, M, Gault, A, Gervasi, M, Giard, M, Gradziel, M, Grandsire, L, Gayer, D, Hamilton, J, Haynes, V, Giraud Héraud, Y, Holtzer, N, Kaplan, J, Korotkov, A, Lande, J, Lowitz, A, Maffei, B, Marnieros, S, Martino, J, Masi, S, Mennella, A, Montier, L, Murphy, A, Ng, M, Olivieri, E, Pajot, F, Passerini, A, Piacentini, F, Piat, M, Piccirillo, L, Pisano, G, Prêle, D, Rambaud, D, Rigaut, O, Rosset, C, Salatino, M, Schillaci, A, Scully, S, O’Sullivan, C, Tartari, A, Timbie, P, Tucker, G, Vibert, L, Voisin, F, Watson, B, Zannoni, M, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), QUBIC, AstroParticule et Cosmologie ( APC - UMR 7164 ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Observatoire de Paris-Université Paris Diderot - Paris 7 ( UPD7 ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ), Institut d'astrophysique spatiale ( IAS ), Université Paris-Sud - Paris 11 ( UP11 ) -Institut national des sciences de l'Univers ( INSU - CNRS ) -Centre National de la Recherche Scientifique ( CNRS ), Centre de Sciences Nucléaires et de Sciences de la Matière ( CSNSM ), Université Paris-Sud - Paris 11 ( UP11 ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Institut de recherche en astrophysique et planétologie ( IRAP ), Université Paul Sabatier - Toulouse 3 ( UPS ) -Observatoire Midi-Pyrénées ( OMP ) -Centre National de la Recherche Scientifique ( CNRS ), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), and Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Bolometric interferometry, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Experimental Physics, Computer science, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Cosmic microwave background, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, CMB, 01 natural sciences, Cosmology, B-modes, Polarization, Transition Edge Sensors, Bolometric Interferometry, FIS/05 - ASTRONOMIA E ASTROFISICA, 0103 physical sciences, General Materials Science, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, [ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation and Methods for Astrophysics (astro-ph.IM), 010303 astronomy & astrophysics, Inflation (cosmology), Gravitational wave, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Holy Grail, Interferometry, B-mode, Computer Science::Programming Languages, Astrophysics - Instrumentation and Methods for Astrophysics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Transition edge sensor, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

QUBIC is a unique instrument that crosses the barriers between classical imaging architectures and interferometry taking advantage from both for high sensitivity and systematics mitigation. The scientific target is the detection of the primordial gravitational waves imprint on the Cosmic Microwave Background which are the proof of inflation, holy grail of modern cosmology. In this paper, we show the latest advances in the development of the architecture and the sub-systems of the first module of this instrument to be deployed in Dome Charlie Concordia base - Antarctica in 2015., Comment: 6 pages, 2 figures, conference LTD15

Published
2014

7. High-impedence NbSi TES sensors for studying the cosmic microwave background radiation

Author

S. Marnieros, Alessandro Monfardini, A. Bideaud, L. Dumoulin, Alain Benoit, Laurent Bergé, O. Rigaut, Ph. Camus, C. Nones, CSNSM PS1, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Hélium : du fondamental aux applications (HELFA), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), CSNSM INSTR, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Cryogénie (Cryo), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)

Subjects
Cosmic microwave background, Cosmic background radiation, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, law.invention, symbols.namesake, Optics, law, 0103 physical sciences, Black-body radiation, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Planck, 010306 general physics, 010303 astronomy & astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Physics, business.industry, Gravitational wave, Bolometer, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Polarization (waves), 3. Good health, Wavelength, Space and Planetary Science, symbols, business, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

Precise measurements of the cosmic microwave background (CMB) are crucial in cosmology, because any proposed model of the universe must account for the features of this radiation. Of all CMB measurements that the scientific community has not yet been able to perform, the CMB B-mode polarization is probably the most challenging from the instrumental point of view. The signature of primordial gravitational waves, which give rise to a B-type polarization, is one of the goals in cosmology today and amongst the first objectives in the field. For this purpose, high-performance low-temperature bolometric cameras, made of thousands of pixels, are currently being developed by many groups, which will improve the sensitivity to B-mode CMB polarization by one or two orders of magnitude compared to the Planck satellite HFI detectors. We present here a new bolometer structure that is able to increase the pixel sensitivities and to simplify the fabrication procedure. This innovative device replaces delicate membrane-based structures and eliminates the mediation of phonons: the incoming energy is directly captured and measured in the electron bath of an appropriate sensor and the thermal decoupling is achieved via the intrinsic electron-phonon decoupling of the sensor at very low temperature. Reported results come from a 204-pixel array of Nb$_{x}$Si$_{1-x}$ transition edge sensors with a meander structure fabricated on a 2-inch silicon wafer using electron-beam co-evaporation and a cleanroom lithography process. To validate the application of this device to CMB measurements, we have performed an optical calibration of our sample in the focal plane of a dilution cryostat test bench. We have demonstrated a light absorption close to 20% and an NEP of about 7$\times10^{-16}$ W/$\sqrt{Hz}$, which is highly encouraging given the scope for improvement in this type of detectors., 6 pages, 10 figures. arXiv admin note: text overlap with arXiv:1005.0555 by other authors

Published
2012

8. Electron-Phonon Decoupling NbSi CMB Bolometers

Author

L. Dumoulin, P. Camus, S. Marnieros, Laurent Bergé, Alain Benoit, Alessandro Monfardini, C. Nones, O. Rigaut, CSNSM PS1, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), CSNSM INSTR, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Hélium : du fondamental aux applications (HELFA), Institut Néel (NEEL), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), Cryogénie (Cryo), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)

Subjects
Cryostat, Cosmic microwave background, Electron, Astrophysics::Cosmology and Extragalactic Astrophysics, CMB, 01 natural sciences, law.invention, Low temperature detectors, Optics, law, 0103 physical sciences, Thermal, General Materials Science, Wafer, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Physics, 010308 nuclear & particles physics, business.industry, Bolometer, Astrophysics::Instrumentation and Methods for Astrophysics, Electron-phonon coupling, Decoupling (cosmology), Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Cardinal point, business, TES
Abstract

Precise measurements of the cosmic microwave background (CMB) is crucial to cosmology, since any proposed model of the Universe must account for the features of this radiation. E_cient very large bolometer arrays (> 10,000 pixels) constitute an important challenge for CMB observations and are actually developed by many groups worldwide. We present here an explorative new bolometer design based on a structure that simplifies the fabrication process and exhibits high sensitivity. This innovative device replaces delicate membrane-based structures and eliminates the mediation of phonons: the incoming energy is directly captured and measured in the electron bath of an appropriate sensor and the thermal decoupling is achieved via the intrinsic electron-phonon decoupling of the sensor at very low temperature. Reported results come from a 204-pixel matrix of Nb (x) Si1-x transition edge sensors with a meander structure fabricated on a 2-inch silicon wafer using electron-beam co-evaporation and standard lithography process. To validate the application to CMB measurements, we have realized an optical calibration of our sample in the focal plane of a dilution cryostat test bench.

Published
2012

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