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15 results on '"RTRA Triangle de la Physique"'

1. Improvement of the thermal properties of optically pumped semiconductor chips at 850 nm (orale)

Author

Gozhyk, Iryna, Beaudoin, Grégoire, Janicot, Sylvie, Lafosse, Xavier, Dumont, Paul, Garnache, Arnaud, Georges, Patrick, Lucas-Leclin, Gaëlle, Sagnes, Isabelle, Laboratoire de photonique et de nanostructures (LPN), Centre National de la Recherche Scientifique (CNRS), Laboratoire Charles Fabry / Lasers, Laboratoire Charles Fabry (LCF), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), Institut d’Electronique et des Systèmes (IES), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Térahertz, hyperfréquence et optique (TéHO), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), and RTRA - Triangle de la Physique RENATECH

Subjects
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Astrophysics::High Energy Astrophysical Phenomena
Abstract

Thermal saturation of VECSELs emission properties stays a major issue in those applications, requiring a high precision on the chip emission wavelength (such as atomic clocks experiments). In this paper we analyze the possibility to reduce the thermal resistance of the semiconductor chip emitting at 850nm by means of substrate substitution method. We propose two different techniques and compare their efficiency through experimental study on VECSEL emission properties.

Published
2014

2. Two-cross-polarized-frequency VECSEL at 852nm for CPT-based Cs clocks (poster)

Author

Camargo, Fabiola, Dumont, Paul, Ghozyk, Iryna, Lucas-Leclin, Gaëlle, Georges, Patrick, Danet, Jean-Marie, Holleville, David, Guerandel, Stéphane, Sagnes, Isabelle, Baili, Ghaya, Morvan, Loic, Pillet, Gregoire, Dolfi, Daniel, Laboratoire Charles Fabry / Lasers, Laboratoire Charles Fabry (LCF), Université Paris-Sud - Paris 11 (UP11)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS), Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de photonique et de nanostructures (LPN), Centre National de la Recherche Scientifique (CNRS), Thales Research and Technology [Palaiseau], THALES [France], RENATECH, RTRA/Triangle de la Physique (2010-089T), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), and THALES

Subjects
Condensed Matter::Quantum Gases, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Fluctuations relaxations and noise, Vertical cavity surface emitting lasers, Physics::Optics, 140.7260,270.2500, Physics::Atomic Physics
Abstract

International audience; We demonstrate a tunable high-purity microwave signal generation from a cross- polarized dual-frequency diode-pumped vertical external-cavity semiconductor laser operating at 852 nm for the coherent population trapping of cesium atoms in compact atomic frequency references.

Published
2013

3. Wavefront improvement in an injection-seeded soft x-ray laser based on a solid-target plasma amplifier

Author

Lu Li, Stéphane Sebban, T. T. T. Le, Yong Wang, Bitao Hu, Gilles Maynard, S. Daboussi, David Ros, Liang Yin, Eduardo Oliva, Shoujun Wang, Jorge J. Rocca, Philippe Zeitoun, Laboratoire d'optique appliquée (LOA), École Nationale Supérieure de Techniques Avancées (ENSTA Paris)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China, NSF Engineering Research Center for Extreme Ultraviolet Science and Technology, Colorado State University [Fort Collins] (CSU), Laboratoire de physique des gaz et des plasmas (LPGP), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), AMOS program of the Office of Basic Energy Science, US Department of EnergyNSF ERC for Extreme Ultraviolet Science and Technology with equipment development under NSF MRI-ARRA 09-561SHYLAX, RTRA 'Triangle de la Physique,' INREX in LASERLAB3 and FP7 European program 284464, and European Project: 284464,LAERLAB3

Subjects
Brightness, genetic structures, Astrophysics::High Energy Astrophysical Phenomena, Physics::Optics, BEAM, Lambda, 01 natural sciences, NM, law.invention, 010309 optics, Root mean square, COHERENT, Optics, law, [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], 0103 physical sciences, 010306 general physics, Wavefront, Physics, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], business.industry, Amplifier, Astrophysics::Instrumentation and Methods for Astrophysics, AMPLIFICATION, Wavefront sensor, Plasma, Laser, Atomic and Molecular Physics, and Optics, eye diseases, Optoelectronics, sense organs, business
Abstract

International audience; The wavefront of an injection-seeded soft x-ray laser beam generated by amplification of high-harmonic pulses in a lambda = 18.9 nm molybdenum plasma amplifier was measured by a Hartmann wavefront sensor with an accuracy of lambda/32 root mean square (rms). A significant improvement in wavefront aberrations of 0.51 +/- 0.03 lambda rms to 0.23 +/- 0.01 lambda rms was observed as a function of plasma column length. The variation of wavefront characteristic as a function time delay between the injection of the seed and peak of soft x-ray amplifier pump was studied. The measurements were used to reconstruct the soft x-ray source and confirm its high peak brightness. (C) 2013 Optical Society of America

Published
2013
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4. X-ray Chirped Pulse Amplification: towards GW Soft X-ray Lasers

Author

Thi Thu Thuy Le, Marta Fajardo, Philippe Zeitoun, Lu Li, Pedro Velarde, David Ros, Stéphane Sebban, Eduardo Oliva, Laboratoire d'optique appliquée (LOA), École Nationale Supérieure de Techniques Avancées (ENSTA Paris)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique des gaz et des plasmas (LPGP), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Instituto de Fusión Nuclear, Universidad Politécnica de Madrid (UPM), Inst Super Tecn, GoLP Inst Plasmas & Fusao Nucl, and SHYLAX project from RTRA-Triangle de la Physique

Subjects
Chirped pulse amplification, chirped pulse amplification, 7. Clean energy, 01 natural sciences, lcsh:Technology, law.invention, 010309 optics, X-ray laser, lcsh:Chemistry, Optics, law, [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], 0103 physical sciences, High harmonic generation, General Materials Science, 010306 general physics, Instrumentation, Collisional excitation, lcsh:QH301-705.5, plasma, Fluid Flow and Transfer Processes, Physics, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], business.industry, lcsh:T, Process Chemistry and Technology, General Engineering, modeling, Plasma, Nanosecond, Laser, lcsh:QC1-999, high harmonic generation, Computer Science Applications, Pulse (physics), lcsh:Biology (General), lcsh:QD1-999, lcsh:TA1-2040, business, lcsh:Engineering (General). Civil engineering (General), lcsh:Physics
Abstract

International audience; Extensive modeling of the seeding of plasma-based soft X-ray lasers is reported in this article. Seminal experiments on amplification in plasmas created from solids have been studied in detail and explained. Using a transient collisional excitation scheme, we show that a 18 mu J, 80 fs fully coherent pulse is achievable by using plasmas pumped by a compact 10 Hz laser. We demonstrate that direct seeding of plasmas created by nanosecond lasers is not efficient. Therefore, we propose and fully study the transposition to soft X-rays of the Chirped Pulse Amplification (CPA) technique. Soft X-ray pulses with energy of 6 mJ and 200 fs duration are reachable by seeding plasmas pumped by compact 100 J, sub-ns, 1 shot/min lasers. These soft X-ray lasers would reach GW power, corresponding to an increase of 100 times as compared to the highest peak power achievable nowadays in the soft X-ray region (30 eV-1 keV). X-ray CPA is opening new horizon for soft x-ray ultra-intense sources.

Published
2013
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5. Gestion de la thermique dans les structures actives des lasers vecsels à 850 NM (Orale)

Author

Gozhyk, Iryna, Beaudoin, Grégoire, Sagnes, Isabelle, Garnache, Arnaud, Janicot, Sylvie, Georges, Patrick, Lucas-Leclin, Gaëlle, Laboratoire Charles Fabry / Lasers, Laboratoire Charles Fabry (LCF), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), Laboratoire de photonique et de nanostructures (LPN), Centre National de la Recherche Scientifique (CNRS), Institut d’Electronique et des Systèmes (IES), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Térahertz, hyperfréquence et optique (TéHO), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), RTRA/Triangle de la Physique, and RENATECH

Subjects
laser à semiconducteur, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], VECSEL, résistance thermique
Abstract

National audience; L'échauffement des structures actives semiconductrices dans les lasers VECSELs constitue une forte limitation à l'émission de puissances élevées. Nous évaluons théoriquement et expérimentalement les effets thermiques dans ces composants, et mettons en œuvre une technologie de report sur substrat Au développée pour améliorer leur résistance thermique.

Published
2013

6. Emission bifréquence d'un laser à semiconducteur en cavité externe à 852 nm pour les horloges atomiques a césium (orale)

Author

Camargo, Fabiola, Dumont, Paul, Lucas-Leclin, Gaëlle, Georges, Patrick, Danet, Jean-Marie, Holleville, David, Guérandel, S., Sagnes, Isabelle, Baili, Ghaya, Morvan, Loïc, Dolfi, Daniel, Laboratoire Charles Fabry / Lasers, Laboratoire Charles Fabry (LCF), Université Paris-Sud - Paris 11 (UP11)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS), Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de photonique et de nanostructures (LPN), Centre National de la Recherche Scientifique (CNRS), Thales Research and Technology [Palaiseau], THALES, RTRA Triangle de la Physique, réseau RENATECH, and THALES [France]

Subjects
laser à semiconducteur, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], VECSEL, horloges atomiques
Abstract

National audience; Nous décrivons l'émission simultanée en phase, sur deux fréquences optiques polarisées perpendiculairement, d'un laser à semiconducteur en cavité externe pompé optiquement. L'émission est accordable autour de la raie D2 du césium à 852,14 nm avec une puissance optique d'environ 13 mW sur chaque polarisation. La différence de fréquence est ajustée grâce à un modulateur électro-optique autour de 9,2 GHz. Nous évaluons la source réalisée en vue de son application au piégeage cohérent de population d'atomes de césium dans une horloge atomique.

Published
2013

7. Improvement of the thermal properties of semiconductor chips at 850 nm (poster)

Author

Gozhyk, Iryna, Beaudoin, Grégoire, Janicot, Sylvie, Lafosse, Xavier, Garnache, Arnaud, Sagnes, Isabelle, Georges, Patrick, Lucas-Leclin, Gaëlle, Laboratoire Charles Fabry / Lasers, Laboratoire Charles Fabry (LCF), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), Laboratoire de photonique et de nanostructures (LPN), Centre National de la Recherche Scientifique (CNRS), Institut d’Electronique et des Systèmes (IES), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Térahertz, hyperfréquence et optique (TéHO), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), and RTRA/Triangle de la Physique RENATECH

Subjects
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2013

8. Dual frequency emission in a compact semiconductor laser for coherent population trapping cesium atomic clocks

Author

Camargo, Fabiola, Georges, Patrick, Lucas-Leclin, Gaëlle, Girard, Nils, Baili, Ghaya, Morvan, Loïc, Dolfi, Daniel, Holleville, David, Guérandel, S., Sagnes, Isabelle, Laboratoire Charles Fabry / Lasers, Laboratoire Charles Fabry (LCF), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), Thales Research and Technology [Palaiseau], THALES, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de photonique et de nanostructures (LPN), Centre National de la Recherche Scientifique (CNRS), RTRA/Triangle de la Physique (2010-089T), Université Paris-Sud - Paris 11 (UP11)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS), and THALES [France]

Subjects
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Physics::Optics, Physics::Atomic Physics
Abstract

We present the dual-frequency emission of a diode-pumped vertical external-cavity semiconductor laser at 852 nm dedicated to coherent population trapping experiments. With a compact cavity more than 10mW is demonstrated in each polarization, with a frequency difference in the GHz range. One polarization has been stabilized on an atomic transition

Published
2012

9. Coherent Dual-Frequency Emission of a Vertical External-Cavity Semiconductor Laser at the Cesium D_{2} Line

Author

David Holleville, Fabiola Camargo, Gaëlle Lucas-Leclin, Isabelle Sagnes, J. Barrientos, Loic Morvan, Stéphane Guérandel, Daniel Dolfi, Ghaya Baili, Patrick Georges, Laboratoire national de métrologie et d'essais - Systèmes de Référence Temps-Espace (LNE - SYRTE), Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, 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)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Charles Fabry / Lasers, Laboratoire Charles Fabry (LCF), Université Paris-Sud - Paris 11 (UP11)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS), Thales Research and Technology [Palaiseau], THALES [France], Laboratoire de photonique et de nanostructures (LPN), Centre National de la Recherche Scientifique (CNRS), RTRA/Triangle de la Physique (2010-089T), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), and THALES

Subjects
Materials science, Population, Physics::Optics, semiconductor lasers, 02 engineering and technology, Trapping, 7. Clean energy, 01 natural sciences, Semiconductor laser theory, law.invention, 010309 optics, Optical pumping, 020210 optoelectronics & photonics, Optics, law, 0103 physical sciences, vertical cavity surface emitting lasers, 0202 electrical engineering, electronic engineering, information engineering, Physics::Atomic Physics, Electrical and Electronic Engineering, Maser, education, ComputingMilieux_MISCELLANEOUS, Line (formation), [PHYS]Physics [physics], [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], education.field_of_study, business.industry, Laser, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, metrology, Semiconductor, Optoelectronics, business, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience; We describe the dual-frequency and dual-polarization emission of a diode-pumped vertical external-cavity semiconductor laser at 852 nm dedicated to the coherent population trapping of cesium atoms. The output power reaches ∼20 mW on each frequency, with a frequency difference in the GHz range.

Published
2012
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10. Coherent phonon coupling to individual Bloch states in photoexcited bismuth

Author

Marino Marsi, J. Mauchain, Jérôme Faure, Luca Perfetti, E. Papalazarou, B. Arnaud, Igor Reshetnyak, Iurii Timrov, Nathalie Vast, A. van Roekeghem, A. Taleb-Ibrahimi, Laboratoire de Physique des Solides (LPS), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Solides Irradiés (LSI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'optique appliquée (LOA), École Nationale Supérieure de Techniques Avancées (ENSTA Paris)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Synchrotron SOLEIL (SSOLEIL), Centre National de la Recherche Scientifique (CNRS), Institut de Physique de Rennes (IPR), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS), RTRA Triangle de la Physique, Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, CASSIOPEE, Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X), Université de Rennes 1 (UR1), and Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Phonon, [PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph], Binding energy, General Physics and Astronomy, chemistry.chemical_element, FOS: Physical sciences, 02 engineering and technology, 01 natural sciences, Bismuth, Condensed Matter::Materials Science, X-ray photoelectron spectroscopy, Ab initio quantum chemistry methods, [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], 0103 physical sciences, Wave vector, 010306 general physics, 73.20.Mf, 71.15.Mb, 73.20.At, 78.47.jb, Surface states, Physics, [PHYS]Physics [physics], Condensed Matter - Materials Science, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Condensed matter physics, Materials Science (cond-mat.mtrl-sci), 021001 nanoscience & nanotechnology, Condensed Matter - Other Condensed Matter, [SDV.BBM.BP]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Biophysics, chemistry, Quasiparticle, Atomic physics, 0210 nano-technology, Other Condensed Matter (cond-mat.other)
Abstract

International audience; We investigate the temporal evolution of the electronic states at the bismuth (111) surface by means of time- and angle-resolved photoelectron spectroscopy. The binding energy of bulklike bands oscillates with the frequency of the A(1g) phonon mode, whereas surface states are insensitive to the coherent displacement of the lattice. A strong dependence of the oscillation amplitude on the electronic wave vector is correctly reproduced by ab initio calculations of electron-phonon coupling. Besides these oscillations, all the electronic states also display a photoinduced shift towards higher binding energy whose dynamics follows the evolution of the electronic temperature.

Published
2012
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11. Microcavity-quality-factor enhancement using nonlinear effects close to the bistability threshold and coherent population oscillations

Author

P. Grinberg, Alejandro M. Yacomotti, Yannick Dumeige, Juan Ariel Levenson, E. Le Cren, Kamel Bencheikh, Fonctions Optiques pour les Technologies de l'informatiON ( FOTON ), Université de Rennes 1 ( UR1 ), Université de Rennes ( UNIV-RENNES ) -Université de Rennes ( UNIV-RENNES ) -Université européenne de Bretagne ( UEB ) -Institut National des Sciences Appliquées - Rennes ( INSA Rennes ) -École Nationale Supérieure des Sciences Appliquées et de Technologie ( ENSSAT ) -Télécom Bretagne-Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de photonique et de nanostructures ( LPN ), Centre National de la Recherche Scientifique ( CNRS ), RTRA Triangle de la physique, C'nano IdF, ANR-10-BLAN-1002,CALIN,Cavités à fort facteur de qualité, guides à modes lents et Lumière lente par Interaction Non linéaire ( 2010 ), Optical resonators and their applications, ORA, ANR2010BLAN0312,Optical resonators and their applications, ORA, ANR2010BLAN0312, Fonctions Optiques pour les Technologies de l'informatiON (FOTON), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Université européenne de Bretagne - European University of Brittany (UEB)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Télécom Bretagne-Centre National de la Recherche Scientifique (CNRS), Laboratoire de photonique et de nanostructures (LPN), Centre National de la Recherche Scientifique (CNRS), ANR-10-BLAN-1002,CALIN,Cavités à fort facteur de qualité, guides à modes lents et Lumière lente par Interaction Non linéaire(2010), ANR-10-BLAN-0312,ORA,Résonateurs optiques et leurs applications(2010), Université de Rennes (UR)-Université européenne de Bretagne - European University of Brittany (UEB)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Télécom Bretagne-Centre National de la Recherche Scientifique (CNRS)

Subjects
Bistability, Cavity lifetime, Population, Physics::Optics, 01 natural sciences, Transfer function, law.invention, 010309 optics, Resonator, PACS: 42.65.Pc, 42.55.Sa, 42.50.Gy, Optics, Quality (physics), law, 0103 physical sciences, Dispersion (optics), 010306 general physics, education, Physics, education.field_of_study, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics], business.industry, food and beverages, Optical microcavity, Atomic and Molecular Physics, and Optics, Nonlinear system, Optoelectronics, Population Oscillations, business, Microcavity
Abstract

9 pages; International audience; We analytically show that inserting a driven, two-level system inside a microcavity can improve its optical properties. In this approach, the strong dispersion induced by a pump via population oscillations increases the cavity lifetime experienced by a slightly detuned probe. We further predict that if the cavity is pumped through a resonant channel, optical absorptive or dispersive bistability can be combined with the population-oscillation-induced steep material dispersion to obtain a strong quality-factor enhancement. Moreover, differential amplification coming from the nonlinear feature of the pump transfer function can be used to drastically increase the probe transmission beyond intrinsic characteristics of the resonator. The Q-factor enhancement and the differential amplification can be advantageously combined with a frequency pulling effect to stabilize or readjust the microcavity resonance frequency.

Published
2012
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12. Evaluation of the single-frequency operation of a short vertical external-cavity semiconductor laser at 852 nm

Author

Isabelle Sagnes, Arnaud Garnache, Fabiola Camargo, Gaëlle Lucas-Leclin, Patrick Georges, Sylvie Janicot, Laboratoire Charles Fabry / Lasers, Laboratoire Charles Fabry (LCF), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), Laboratoire de photonique et de nanostructures (LPN), Centre National de la Recherche Scientifique (CNRS), Institut d’Electronique et des Systèmes (IES), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Térahertz, hyperfréquence et optique (TéHO), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), and RTRA/Triangle de la Physique (2010-089T)

Subjects
Materials science, Thermal lens, Physics::Optics, 02 engineering and technology, Output coupler, VECSEL, Single-frequency, 01 natural sciences, law.invention, Semiconductor laser theory, 010309 optics, 020210 optoelectronics & photonics, Optics, law, 0103 physical sciences, Thermal, 0202 electrical engineering, electronic engineering, information engineering, Semiconductor lasers, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Plane (geometry), business.industry, Laser, Lens (optics), Semiconductor, Transmission (telecommunications), Physics::Accelerator Physics, Optoelectronics, business
Abstract

International audience; We present in this work the study of a short vertical external cavity semiconductor laser in single longitudinal operation at 852 nm without intracavity elements. Two different configurations were studied, a plane-plane configuration, stabilized by the thermal lens and a plane-concave configuration. The influence of the output coupler transmission and the thermal lens has been studied. In the plane concave configuration we have demonstrated more than 100mW in stable single frequency operation using a very compact cavity emitting around 852 nm.

Published
2012
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13. Tunable dual-frequency laser source for coherent population trapping cesium atomic clocks

Author

Camargo, Fabiola, Georges, Patrick, Lucas-Leclin, Gaëlle, Girard, Nils, Baili, Ghaya, Morvan, Loïc, Dolfi, Daniel, Danet, Jean-Marie, Holleville, David, Guérandel, S., Sagnes, Isabelle, Laboratoire Charles Fabry / Lasers, Laboratoire Charles Fabry (LCF), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), Thales Research and Technology [Palaiseau], THALES, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de photonique et de nanostructures (LPN), Centre National de la Recherche Scientifique (CNRS), RTRA/Triangle de la Physique 2010-089T, ANR-07-BLAN-0320,2POLEVF,Two-POLarisation VECSEL for the generation of two-Frequency beams(2007), Université Paris-Sud - Paris 11 (UP11)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS), and THALES [France]

Subjects
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]
Abstract

conférence

Published
2012

14. Dual frequency VECSEL at 852 nm for coherent population trapping cesium atomic clocks

Author

Camargo, Fabiola, Georges, Patrick, Lucas-Leclin, Gaëlle, Girard, Nils, Baili, Ghaya, Morvan, Loïc, Dolfi, Daniel, Danet, Jean-Marie, Holleville, David, Guerandel, S., Sagnes, Isabelle, Laboratoire Charles Fabry / Lasers, Laboratoire Charles Fabry (LCF), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), Thales Research and Technology [Palaiseau], THALES, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de photonique et de nanostructures (LPN), Centre National de la Recherche Scientifique (CNRS), RTRA / Triangle de la Physique (2010-089T), ANR-07-BLAN-0320,2POLEVF,Two-POLarisation VECSEL for the generation of two-Frequency beams(2007), Université Paris-Sud - Paris 11 (UP11)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS), and THALES [France]

Subjects
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2012

15. Influence of a static magnetic field on the photoluminescence of an ensemble of Nitrogen-Vacancy color centers in a diamond single-crystal

Author

Fedor Jelezko, Ngoc Diep Lai, François Treussart, Dingwei Zheng, Jean-François Roch, Lai, Ngoc Diep, Laboratoire de Photonique Quantique et Moléculaire (LPQM), École normale supérieure - Cachan (ENS Cachan)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Stuttgart University, EQUIND (FP6 project number IST-034368), NEDQIT (ERANET Nano-Sci), B-DIAMANT (RTRA 'Triangle de la Physique'), and Centre National de la Recherche Scientifique (CNRS)-CentraleSupélec-École normale supérieure - Cachan (ENS Cachan)

Subjects
[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics], Physics and Astronomy (miscellaneous), Spin states, Magnetometer, FOS: Physical sciences, 02 engineering and technology, engineering.material, 01 natural sciences, law.invention, magnetometry, [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph], law, Electron spin resonance, 0103 physical sciences, Radiative transfer, 010306 general physics, optical dipoles, ComputingMilieux_MISCELLANEOUS, [PHYS.QPHY] Physics [physics]/Quantum Physics [quant-ph], [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Condensed Matter - Materials Science, Quantum Physics, Chemistry, Materials Science (cond-mat.mtrl-sci), Diamond, PACS: 72.25.Fe, 78.70.Gq, 42.50.Tx, 42.50.Dv, 03.67.-a, 021001 nanoscience & nanotechnology, Magnetostatics, Magnetic field, diamond nanocrystal, engineering, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Atomic physics, Quantum Physics (quant-ph), 0210 nano-technology, Single crystal, Excitation
Abstract

We investigate the electron spin resonance of an ensemble of Nitrogen-Vacancy (NV) color centers in a bulk diamond crystal. The four possible orientations of the NV-center in the lattice lead to different dependences on the magnitude and the orientation of an external static magnetic field. Experimental results obtained with a continuous microwave excitation are in good agreement with simulations. In addition, we observe that the average radiative lifetime of the NV color center is also modified when the external magnetic field is applied. This variation is explained by the mixing between mS = 0 and mS = $\pm$1 spin states of the NV-center with different radiative lifetimes, due to magnetic coupling. These results are of interest for a broad range of applications, such as spin-resonance-based magnetometry with a high-density ensemble of NV-centers, 14 pages, published on Applied Physics Letters journal

Published
2009

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