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14 results on '"Danièle Forest"'

1. Amorphous optical coatings of present gravitational-wave interferometers

Author

Gianpietro Cagnoli, Benoit Sassolas, Julien Teillon, Christophe Michel, Lorenzo Mereni, Anthony A. Amato, Jerome Degallaix, Maurizio Canepa, Laurent Pinard, Danièle Forest, M. Granata, Laurent Balzarini, Vincent Dolique, Laboratoire des matériaux avancés (LMA), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut Lumière Matière [Villeurbanne] (ILM), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon, Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics - Instrumentation and Detectors, gravitational-wave detectors, internal friction, thermal noise, thin lms, Physics and Astronomy (miscellaneous), Annealing (metallurgy), interferometer, Thin films, Analytical chemistry, FOS: Physical sciences, absorption: optical, engineering.material, 01 natural sciences, Coating, 0103 physical sciences, KAGRA, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Thin film, LIGO, 010306 general physics, mirror, Physics, Condensed Matter - Materials Science, refractive index, 010308 nuclear & particles physics, gravitational radiation, Materials Science (cond-mat.mtrl-sci), Instrumentation and Detectors (physics.ins-det), gravitational radiation detector, [PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph], Amorphous solid, Optical coating, experimental equipment, VIRGO, engineering, Refractive index, experimental results
Abstract

We report on the results of an extensive campaign of optical and mechanical characterization of the ion-beam sputtered oxide layers (Ta2O5, TiO2, Ta2O5–TiO2, SiO2) within the high-reflection coatings of the Advanced LIGO, Advanced Virgo and KAGRA gravitational-wave detectors: refractive index, thickness, optical absorption, composition, density, internal friction and elastic constants have been measured; the impact of deposition rate and post-deposition annealing on coating internal friction has been assessed. For Ta2O5 and SiO2 layers, coating internal friction increases with the deposition rate, whereas the annealing treatment either erases or largely reduces the gap between samples with different deposition history. For Ta2O5–TiO2 layers, the reduction of internal friction due to TiO2 doping becomes effective only if coupled with annealing. All measured samples showed a weak dependence of internal friction on frequency [ϕ c(f) = af b , with −0.208 < b < 0.140 depending on the coating material considered]. SiO2 films showed a mode-dependent loss branching, likely due to spurious losses at the coated edge of the samples. The reference loss values of the Advanced LIGO and Advanced Virgo input (ITM) and end (ETM) mirror HR coatings have been updated by using our estimated value of Young’s modulus of Ta2O5–TiO2 layers (120 GPa) and are about 10% higher than previous estimations.

Published
2019
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2. Large and extremely low loss: the unique challenges of gravitational wave mirrors

Author

B. Sassolas, R. Flaminio, Vincent Dolique, L. Pinard, N. Straniero, Danièle Forest, Julien Teillon, Christophe Michel, Gianpetro Cagnoli, M. Granata, Laurent Balzarini, B. Lagrange, Jerome Degallaix, A. Allocca, Laboratoire des matériaux avancés (LMA), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Istituto Nazionale di Fisica Nucleare [Pisa] (INFN), Istituto Nazionale di Fisica Nucleare (INFN), Spectroscopies optiques des matériaux verres, amorphes et à nanoparticules (SOPRANO), Institut Lumière Matière [Villeurbanne] (ILM), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique de l'ENS Lyon (Phys-ENS), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), École normale supérieure - Lyon (ENS Lyon)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon, Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Degallaix, J., Michel, C., Sassolas, B., Allocca, A., Cagnoli, G., Balzarini, L., Dolique, V., Flaminio, R., Forest, D., Granata, M., Lagrange, B., Straniero, N., Teillon, J., and Pinard, L.

Subjects
Astrophysics::High Energy Astrophysical Phenomena, 01 natural sciences, 7. Clean energy, law.invention, 010309 optics, Laser interferometry, General Relativity and Quantum Cosmology, [SPI]Engineering Sciences [physics], Optics, law, 0103 physical sciences, [CHIM]Chemical Sciences, Laser beams, Physics, [PHYS]Physics [physics], Gravitational wave, business.industry, Detector, Near-infrared spectroscopy, Laser, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Interferometry, Neutron star, Computer Vision and Pattern Recognition, business
Abstract

International audience; This paper describes the making of large mirrors for laser interferometer gravitational wave detectors. These optics, working in the near infrared, are among the best optics ever created and played a crucial role in the first direct detection of gravitational waves from black holes or neutron star fusions.

Published
2019
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3. High-Reflection Coatings for Gravitational-Wave Detectors: State of The Art and Future Developments

Author

Valérie Martinez, M. Granata, Danièle Forest, Laurent Pinard, Christophe Michel, Anthony A. Amato, Gianpietro Cagnoli, Jerome Degallaix, Maurizio Canepa, Benoit Sassolas, Julien Teillon, Elodie Coillet, Vincent Dolique, Laboratoire des matériaux avancés (LMA), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut Lumière Matière [Villeurbanne] (ILM), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon, Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Laboratoire des matériaux avancés ( LMA ), Université Claude Bernard Lyon 1 ( UCBL ), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ) -Centre National de la Recherche Scientifique ( CNRS ), Institut Lumière Matière [Villeurbanne] ( ILM ), and Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique ( CNRS )

Subjects
History, Materials science, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, FOS: Physical sciences, Applied Physics (physics.app-ph), engineering.material, 01 natural sciences, Particle detector, Education, Physics and Astronomy (all), Condensed Matter::Materials Science, Coating, Sputtering, 0103 physical sciences, noise: thermal, silicon: nitrogen, KAGRA, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], LIGO, 010306 general physics, [ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [PHYS]Physics [physics], [ PHYS ] Physics [physics], 010308 nuclear & particles physics, Gravitational wave, Detector, mirror: surface, Physics - Applied Physics, Instrumentation and Detectors (physics.ins-det), Engineering physics, gravitational radiation detector, Computer Science Applications, Surface coating, VIRGO, engineering, mechanics
Abstract

International audience; We report on the optical, mechanical and structural characterization of the sputtered coating materials of Advanced LIGO, Advanced Virgo and KAGRA gravitational- waves detectors. We present the latest results of our research program aiming at decreasing coating thermal noise through doping, optimization of deposition parameters and post- deposition annealing. Finally, we propose sputtered Si3N4 as a candidate material for the mirrors of future detectors.

Published
2017
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5. Mechanical loss in state-of-the-art amorphous optical coatings

Author

Danièle Forest, Gianpietro Cagnoli, R. Flaminio, Alix Cajgfinger, Christophe Michel, Janyce Franc, M. Granata, N. Morgado, L. Pinard, Vincent Dolique, E. Saracco, Jerome Degallaix, Laboratoire des matériaux avancés (LMA), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut Lumière Matière [Villeurbanne] (ILM), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), National Astronomical Observatory of Japan (NAOJ), and LIGO-Virgo

Subjects
Physics - Instrumentation and Detectors, FOS: Physical sciences, Physics::Optics, engineering.material, 01 natural sciences, Noise (electronics), Optics, Coating, 0103 physical sciences, Astronomical interferometer, 010306 general physics, Physics, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], 010308 nuclear & particles physics, business.industry, Detector, Instrumentation and Detectors (physics.ins-det), Dissipation, Amorphous solid, Interferometry, Optical coating, engineering, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], business, Physics - Optics, Optics (physics.optics)
Abstract

We present the results of mechanical characterizations of many different high-quality optical coatings made of ion-beam-sputtered titania-doped tantala and silica, developed originally for interferometric gravitational-wave detectors. Our data show that in multi-layer stacks (like high-reflection Bragg mirrors, for example) the measured coating dissipation is systematically higher than the expectation and is correlated with the stress condition in the sample. This has a particular relevance for the noise budget of current advanced gravitational-wave interferometers, and, more generally, for any experiment involving thermal-noise limited optical cavities., Comment: 31 pages, 14 figures

Published
2016
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6. Measurement of the optical absorption of bulk silicon at cryogenic temperature and the implication for the Einstein Telescope

Author

C. Schwarz, Ronny Nawrodt, M. Granata, R. Flaminio, J. Komma, D. Heinert, Gianpietro Cagnoli, L. Pinard, Danièle Forest, G. Hofmann, Christophe Michel, Jerome Degallaix, Laboratoire des matériaux avancés (LMA), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Friedrich-Schiller-Universität = Friedrich Schiller University Jena [Jena, Germany]

Subjects
Physics and Astronomy (miscellaneous), Silicon, optical absorption PACS numbers: 7840Fy, chemistry.chemical_element, 01 natural sciences, Cross section (physics), Einstein Telescope, 0480Nn, 0103 physical sciences, Crystalline silicon, 010306 general physics, Absorption (electromagnetic radiation), Boron, Physics, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], 010308 nuclear & particles physics, business.industry, Doping, 9555Ym, silicon, Interferometry, chemistry, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Optoelectronics, business
Abstract

International audience; We report in this article on the measurement of the optical absorption of moderately doped crystalline silicon samples at 1550 nm, which is a candidate material for the main optics of the low temperature interferometer of the Einstein Telescope (ET). We observe a nearly constant absorption from room temperature down to cryogenic temperatures for two silicon samples presenting an optical absorption of 0.029 cm −1 and 780 ppm cm −1 , both crystals doped with boron. This is in contradiction to what was assumed previously—a negligible optical absorption at low temperature due to the carrier freezeout. As the main consequence, if the silicon intrinsic absorption can not be lowered , the cross section of the mirror suspension of the ET must be increased to be able to carry away the excess heat generated by the partially absorbed laser beam during the operation of the interferometer.

Published
2014
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7. Progress and challenges in advanced ground-based gravitational-wave detectors

Author

V. V. Frolov, V. Malvezzi, G. L. Mansell, B. Champagnon, R. Flaminio, Benno Willke, V. Dolique, L. Anghinolfi, E. Coccia, Stefan Hild, M. Doets, Andreas Freise, Peter Wessels, A. Rocchi, Denis Martynov, K. Shibata, Joseph Gleason, T. Theeg, L. Pinard, C. L. Mueller, Mirko Prato, D. A. Brown, Takashi Uchiyama, M. Granata, A. Schimmel, P. Risson, Ludovic Bellon, Daniel A. Shaddock, L. Carbone, Felipe Aguilar, M.H. Evans, G. Vajente, M. Adier, M. Stefszky, Guido Mueller, Dominique de Ligny, P. Puppo, Enrico Serra, Alain Mermet, Ettore Majorana, A. Kumeta, I. Nardecchia, Gianpietro Cagnoli, Kimio Tsubono, M. G. Beker, Z. Liu, R. Gustafson, J. P. Zendri, Ayaka Shoda, Kazuaki Kuroda, G. A. Prodi, E. Cesarini, L. Naticchioni, H. J. Bulten, M. Neri, T. T. Fricke, Alessandro Bertolini, Yoshito Niwa, C. Bogan, Kenneth A. Strain, S. E. Dwyer, M. Gross, D. H. Shoemaker, V. Quetschke, Peter Fritschel, D. Sigg, S. Farinon, M. Leonardi, Fumiko Kawazoe, F. Mul, M. Daloisio, D. Feldbaum, A. S. Bell, D. Chen, T. Meier, D. Friedrich, Lutz Winkelmann, J. Macarthur, M. Blom, B. Sassolas, N. D. Smith-Lefebvre, N. Kimura, Hartmut Grote, G. Losurdo, S. Koike, P. Kwee, N. Saito, Y. Saito, Toshikazu Suzuki, T. Kume, Danièle Forest, Ben C. Buchler, Nadja S. Magalhães, A. R. Wade, K. Okada, S. H. Huttner, J. Marque, C. M. Mow-Lowry, Grant David Meadors, R. L. Ward, A. Conte, Seiji Kawamura, C. Vorvick, D. Lumaca, M. Lorenzini, K. Yamamoto, Maik Frede, R. M. S. Schofield, J. F. J. van den Brand, N. Straniero, Y. Sakakibara, Giacomo Ciani, Carlos Frajuca, Kentaro Somiya, Koji Ishidoshiro, R. M. Martin, David H. Reitze, K. Kawabe, O. Puncken, Christian Gräf, M. Cortese, M. Geitner, Ryutaro Takahashi, D. Nanda Kumar, N. A. Gordon, Masaki Ando, Yoichi Aso, M. Factourovich, B. Sorazu, K. L. Dooley, C. Michel, Lisa Barsotti, Slawomir Gras, V. Sequino, K. Izumi, Andrea Chincarini, R. Day, M. A. Arain, P. Fulda, B. Lagrange, David E. McClelland, S. Leavey, F. S. Bortoli, Stefan Goßler, V. Fafone, Masatake Ohashi, Nergis Mavalvala, Jerome Degallaix, P. Antonini, M. Kasprzack, Y. Minenkov, Ping Koy Lam, E. Schreiber, Matthew Heintze, C. Bond, P. Oppermann, Maurizio Canepa, V. Mangano, Eric Hennes, M. M. Hanke, C. Tokoku, David B. Tanner, T. Akutsu, M. Landry, L. Mudadu, Roman Schnabel, T. Li, H. Vahlbruch, Alexander Khalaidovski, Carl Blair, G. Tellez, Sheon Chua, J. Poeld, A. Chtanov, M. Damjanic, S. Ueda, B. Barr, L. Williams, Gianluca Gemme, Laboratoire des matériaux avancés ( LMA ), Université Claude Bernard Lyon 1 ( UCBL ), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Physique de l'ENS Lyon ( Phys-ENS ), École normale supérieure - Lyon ( ENS Lyon ) -Université Claude Bernard Lyon 1 ( UCBL ), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique ( CNRS ), Observatoire de Bédoin, Laboratoire de Physique Nucléaire et de Hautes Énergies ( LPNHE ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Paris Diderot - Paris 7 ( UPD7 ) -Centre National de la Recherche Scientifique ( CNRS ), Institut Lumière Matière [Villeurbanne] ( ILM ), Laboratoire Kastler Brossel ( LKB (Lhomond) ), Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris ( FRDPENS ), Centre National de la Recherche Scientifique ( CNRS ) -École normale supérieure - Paris ( ENS Paris ) -Centre National de la Recherche Scientifique ( CNRS ) -École normale supérieure - Paris ( ENS Paris ) -Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Centre National de la Recherche Scientifique ( CNRS ), Virgo, 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 ) -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 ), Laboratoire Hubert Curien [Saint Etienne] ( LHC ), Université Jean Monnet [Saint-Étienne] ( UJM ) -Centre National de la Recherche Scientifique ( CNRS ), Department of Physics and Atmospheric Science [Halifax], Dalhousie University [Halifax], Laboratoire de Physico-Chimie des Matériaux Luminescents ( LPCML ), Institute for Cosmic Ray Research ( ICRR ), The University of Tokyo, Meteorological Research Institute [Tsukuba] ( MRI ), Japan Meteorological Agency ( JMA ), Department of Chemistry, Graduate School of Science and Engineering, Department of Chemistry, (Astro)-Particles Physics, Laboratoire des matériaux avancés (LMA), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique de l'ENS Lyon (Phys-ENS), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut Lumière Matière [Villeurbanne] (ILM), Laboratoire Kastler Brossel (LKB (Lhomond)), Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-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)-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), Laboratoire Hubert Curien (LHC), Institut d'Optique Graduate School (IOGS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS), Institute for Cosmic Ray Research (ICRR), The University of Tokyo (UTokyo), Meteorological Research Institute [Tsukuba] (MRI), Japan Meteorological Agency (JMA), MIT Kavli Institute for Astrophysics and Space Research, Barsotti, Lisa, Evans, Matthew J, Fritschel, Peter K, Gras, Slawomir, Mavalvala, Nergis, Shoemaker, David H, Smith, Nicolas de Mateo, École normale supérieure - Lyon (ENS Lyon)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon, Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Université Pierre et Marie Curie - Paris 6 (UPMC)-Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), 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), Laboratoire Hubert Curien [Saint Etienne] (LHC), and Institut d'Optique Graduate School (IOGS)-Université Jean Monnet [Saint-Étienne] (UJM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Physics and Astronomy (miscellaneous), POWER, [ PHYS.COND.CM-MS ] Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], 01 natural sciences, 010309 optics, Gravitational wave detectors, 0103 physical sciences, KAGRA, Session (computer 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], Physics, Gravitational wave, Detector, Astronomy, [ SDU.ASTR.IM ] Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Optics, Interferometry, LIGO, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], LIGHT, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], MODES, [ PHYS.ASTR.IM ] Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM]
Abstract

The Amaldi 10 Parallel Session C3 on Advanced Gravitational Wave detectors gave an overview of the status and several specific challenges and solutions relevant to the instruments planned for a mid-decade start of observation. Invited overview talks for the Virgo, LIGO, and KAGRA instruments were complemented by more detailed discussions in presentations and posters of some instrument features and designs. © 2014 Springer Science+Business Media New York.

Published
2014
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8. Measurements of mechanical thermal noise and energy dissipation in optical dielectric coatings

Author

Ludovic Bellon, Gianpietro Cagnoli, Jerome Degallaix, Christophe Michel, N. Morgado, Tianjun Li, Mickael Geitner, Vincent Dolique, R. Flaminio, Laurent Pinard, Danièle Forest, M. Granata, Felipe Aguilar Sandoval, Laboratoire de Physique de l'ENS Lyon (Phys-ENS), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Department of Physics ECNU, East China Normal University [Shangaï] (ECNU), Laboratoire des matériaux avancés (LMA), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), LABEX Lyon Institute of Origins (ANR-10-LABX-0066) of the Université de Lyon, financial support within the program 'Investissements d'Avenir' (ANR-11-IDEX-0007), École normale supérieure - Lyon (ENS Lyon)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon

Subjects
Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Thermal noise, [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Annealing (metallurgy), FOS: Physical sciences, Dielectric, engineering.material, 01 natural sciences, Optics, Coating, Dielectric mirror, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [PHYS.COND.CM-SM]Physics [physics]/Condensed Matter [cond-mat]/Statistical Mechanics [cond-mat.stat-mech], Composite material, 010306 general physics, Tantala, Instrumentation and Methods for Astrophysics (astro-ph.IM), Condensed Matter - Statistical Mechanics, viscoelasticity, Physics, Condensed Matter - Materials Science, Statistical Mechanics (cond-mat.stat-mech), 010308 nuclear & particles physics, business.industry, coating, Materials Science (cond-mat.mtrl-sci), Silica, Saulson model, dissipation, Instrumentation and Detectors (physics.ins-det), Dissipation, internal damping, structural damping, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], dielectric mirror, Optical coating, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], engineering, annealing, Dielectric loss, Astrophysics - Instrumentation and Methods for Astrophysics, business, Order of magnitude, Physics - Optics, Optics (physics.optics)
Abstract

In recent years an increasing number of devices and experiments are shown to be limited by mechanical thermal noise. In particular sub-Hertz laser frequency stabilization and gravitational wave detectors, that are able to measure fluctuations of 1E-18 m/rtHz or less, are being limited by thermal noise in the dielectric coatings deposited on mirrors. In this paper we present a new measurement of thermal noise in low absorption dielectric coatings deposited on micro-cantilevers and we compare it with the results obtained from the mechanical loss measurements. The coating thermal noise is measured on the widest range of frequencies with the highest signal to noise ratio ever achieved. In addition we present a novel technique to deduce the coating mechanical losses from the measurement of the mechanical quality factor which does not rely on the knowledge of the coating and substrate Young moduli. The dielectric coatings are deposited by ion beam sputtering. The results presented here give a frequency independent loss angle of (4.70 $\pm$ 0.2)x1E-4 with a Young's modulus of 118 GPa for annealed tantala from 10 Hz to 20 kHz. For as-deposited silica, a weak frequency dependence (~ f^{-0.025}) is observed in this frequency range, with a Young's modulus of 70 GPa and an internal damping of (6.0 $\pm$ 0.3)x1E-4 at 16 kHz, but this value decreases by one order of magnitude after annealing and the frequency dependence disappears., Comment: Accepted for publication in Phys. Rev. D

Published
2014
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9. Bulk optical absorption of high resistivity silicon at 1550 nm

Author

M. Granata, Danièle Forest, Teddy Bertrand, Gianpietro Cagnoli, Christophe Michel, R. Flaminio, L. Pinard, Jerome Degallaix, Laboratoire des matériaux avancés (LMA), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, High resistivity silicon, Extended X-ray absorption fine structure, Silicon, business.industry, Analytical chemistry, technology, industry, and agriculture, chemistry.chemical_element, 01 natural sciences, Atomic and Molecular Physics, and Optics, eye diseases, 010309 optics, Optics, chemistry, Electrical resistivity and conductivity, 0103 physical sciences, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, Crystalline silicon, sense organs, 010306 general physics, Absorption (electromagnetic radiation), business, Refractive index, Laser beams
Abstract

We report on the measurement of the optical absorption of bulk crystalline silicon at 1550 nm. Using the photodeflection technique, absorption as low as 5 ppm/cm has been measured on a sample with a resistivity of 10 kΩ⋅cm . The absorption as a function of the resistivity has been derived for n-type silicon.

Published
2013
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10. Thermal noise measurements on micro-cantilevers coated with dielectric materials

Author

Gianpietro Cagnoli, R. Flaminio, Danièle Forest, Felipe Aguilar, Laurent Pinard, Tianjun Li, Christophe Michel, Jerome Degallaix, Ludovic Bellon, Vincent Dolique, N. Morgado, M. Granata, and Mickael Geitner

Subjects
Ion beam sputtering, Materials science, Cantilever, business.industry, Sputtering, Annealing (metallurgy), Gravitational wave, Detector, Optoelectronics, Dielectric loss, Dielectric, business
Abstract

In recent years an increasing number of devices and experiments are shown to be limited by mechanical thermal noise. In particular sub-Hertz laser frequency stabilization and gravitational wave detectors, that are able to measure fluctuations of 10-18 m/√(Hz) or less, are being limited by thermal noise in the dielectric coatings deposited on mirrors. We present a novel technique of structural relaxation analysis based on the direct thermal noise measurements on micro-cantilevers and we compare it with the results obtained from the mechanical loss measurements. The dielectric coatings are deposited by ion beam sputtering. The results presented here give a loss angle of annealed tantala and as-deposited silica coatings of (3.9 ± 0.4)·10-4 and (5.8 ± 1.0)·10-4 respectively, from 10 Hz to 20 kHz.

Published
2013
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11. Cryogenic measurements of mechanical loss of high-reflectivity coating and estimation of thermal noise

Author

J. H. Hough, Danièle Forest, Salim Otmani, N. Morgado, M. J. Hart, Christophe Michel, W. R. Cunningham, Sheila Rowan, J. Hennig, L. Pinard, Gianpietro Cagnoli, M. Granata, Ian MacLaren, I. W. Martin, Jerome Degallaix, Kieran Craig, Cécile Carcy, R. Flaminio, Laboratoire des matériaux avancés (LMA), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, 010308 nuclear & particles physics, business.industry, High reflectivity, Spectral density, Absorption loss, Dielectric, engineering.material, Atmospheric temperature range, 01 natural sciences, Atomic and Molecular Physics, and Optics, Optics, Coating, 0103 physical sciences, Transmittance, engineering, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, 010306 general physics, business
Abstract

We report on low-frequency measurements of the mechanical loss of a high-quality (transmissivity T

Published
2013
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12. I.B.S. coatings on large substrates: Towards an improvement of the mechanical and optical performances

Author

Jean-Luc Montorio, Alban Remillieux, Bernard Lagrange, P. Ganau, Danièle Forest, Renée Pignard, N. Morgado, Laurent Pinard, Jean-Marie Mackowski, Christophe Michel, Girod, Dominique, Laboratoire des matériaux avancés (LMA), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and VIRGO

Subjects
Wavefront, [PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics], [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Materials science, business.industry, Scattering, Virgo interferometer, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, 010309 optics, Optics, Phase shifting interferometry, [PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Q factor, 0103 physical sciences, Optoelectronics, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Thin film, 0210 nano-technology, business, Absorption (electromagnetic radiation)
Abstract

présenté par A. Remillieux; Large mirrors (350 mm), having extremely low optical loss (absorption, scattering, wavefront) were coated for the VIRGO interferometer. The new mirror generation needs better wavefront and lower mechanical loss. The first results are discussed.

Published
2004

13. The new cryogenic facility at LMA

Author

Quentin Benoit, R. Flaminio, Danièle Forest, B. Lagrange, Kevin Gautier, N. Morgado, Janyce Franc, E. Saracco, Jerome Degallaix, Christophe Michel, Laurent Pinard, and M. Granata

Subjects
Physics, Cryostat, History, Physics::Instrumentation and Detectors, business.industry, Astrophysics::Instrumentation and Methods for Astrophysics, Control equipment, engineering.material, Third generation, Particle detector, Computer Science Applications, Education, Optics, Coating, Astronomical interferometer, Measuring instrument, engineering, Physics::Accelerator Physics, Absorption (electromagnetic radiation), business
Abstract

To support the research effort for the third generation of gravitational wave interferometers, the Laboratoire des Materiaux Avances (LMA) at Lyon, France has developed a new cryogenic facility to characterize optics at low temperature. The new cryostat is installed in a clean room and allows samples to be cooled down to 10 Kelvin in around 12 hours. Currently, two independent experiments have been installed in the cryostat: the measure of the optical absorption of silicon and the measurement of the coating mechanical loss. After a short presentation of the cryogenic and optical setup, preliminary results from the optical absorption experiment will be presented.

Published
2012
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14. Ion beam sputtering coatings on large substrates: toward an improvement of the mechanical and optical performances

Author

Renée Pignard, B. Lagrange, Danièle Forest, P. Ganau, N. Morgado, Alban Remillieux, Laurent Pinard, J.-L. Montorio, Bernard Cimma, Jean-Marie Mackowski, Christophe Michel, Laboratoire des matériaux avancés (LMA), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and VIRGO

Subjects
Materials science, Materials Science (miscellaneous), Virgo interferometer, engineering.material, Optics at surfaces : Thin films, 01 natural sciences, Industrial and Manufacturing Engineering, 010309 optics, chemistry.chemical_compound, Optics, Coating, 0103 physical sciences, Tantalum pentoxide, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Materials : Optical materials, Business and International Management, Thin film, Absorption (electromagnetic radiation), Wavefront, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], 010308 nuclear & particles physics, business.industry, Scattering, Instrumentation measurement and metrology : Interferometry, Interferometry, chemistry, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], engineering, business
Abstract

Large mirrors (∅350 mm) having extremely low optical loss (absorption, scattering, wavefront) were coated for the VIRGO interferometer. The new generation of mirrors needs to have a better wavefront and lower mechanical loss. To improve the component wavefront, the corrective coating technique was used. By doping the tantalum pentoxide layers, we improved, for the first time to our knowledge, the multilayer mechanical loss. The first results are discussed.

Published
2006
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