Zobrazeno 1 - 10
of 168
pro vyhledávání: '"Pascal Besnard"'
Autor:
Georges Perin, Dominique Mammez, Antoine Congar, Pascal Besnard, Karim Manamanni, Vincent Roncin, Frédéric Du Burck, Stéphane Trebaol
Publikováno v:
Semiconductor Lasers and Laser Dynamics X.
Publikováno v:
Proc. SPIE
SPIE Photonics Europe 2022
SPIE Photonics Europe 2022, Apr 2022, Strasbourg, France. pp.121380F, ⟨10.1117/12.2621817⟩
SPIE Photonics Europe 2022
SPIE Photonics Europe 2022, Apr 2022, Strasbourg, France. pp.121380F, ⟨10.1117/12.2621817⟩
International audience; Recently, we proposed an active mid-infrared (MIR) hyperspectral imaging system for early detection of plant water stress. A quantum cascade tunable laser powered this stand-off detection system, in which "speckle" in images d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd0a3d7ce79fd18c959daedfe5a1a608
https://hal.science/hal-04090141
https://hal.science/hal-04090141
Autor:
Georges, Perin, Dominique, Mammez, Antoine, Congar, Pascal, Besnard, Karim, Manamanni, Vincent, Roncin, Frédéric, Du Burck, Stéphane, Trebaol
Publikováno v:
Optics express. 29(23)
We demonstrate a compact and low-cost all-fiber-based locking setup for frequency-noise suppression of a 420 nm external-cavity diode laser. Frequency noise reduction in the 100 Hz to 800 kHz range is demonstrated up to 40 dB associated with a linewi
Autor:
Laurent Lablonde, Catherine Le Rouzic, Thierry Robin, Antoine Congar, Stéphane Trebaol, Mathilde Gay, Georges Perin, Dominique Mammez, Jean-Claude Simon, Pascal Besnard, Julien Rouvillain, Thierry Georges
Publikováno v:
Gallium Nitride Materials and Devices XVI.
Narrow linewidth laser diodes (LDs) emitting in the near-UV (NUV) are gaining attention for applications ranging from spectroscopy to atom cooling and interferometry or other applications requiring high spectral purity. InGaN edge-emitting LDs can ex
Autor:
Antoine Congar, Mathilde Gay, Georges Perin, Dominique Mammez, Jean-Claude Simon, Pascal Besnard, Julien Rouvillain, Thierry Georges, Laurent Lablonde, Thierry Robin, Stéphane Trebaol
Publikováno v:
Optics letters. 46(5)
We realize a fiber Bragg grating InGaN-based laser diode emitting at 400 nm and demonstrate its high coherency. Thanks to the fabrication of a narrowband fiber Bragg grating in the near-UV, we can reach single-mode and single-frequency regimes for th
Autor:
Ronan Le Page, Pascal Besnard, Luiz Poffo, Jean-Marc Goujon, Maroun Hjeij, Bastien Billiot, Chaimae El Fakir
Publikováno v:
Optical Engineering
Optical Engineering, SPIE, 2021, 60 (2), pp.023106. ⟨10.1117/1.OE.60.2.023106⟩
Optical Engineering, 2021, 60 (2), pp.023106. ⟨10.1117/1.OE.60.2.023106⟩
Optical Engineering, SPIE, 2021, 60 (2), pp.023106. ⟨10.1117/1.OE.60.2.023106⟩
Optical Engineering, 2021, 60 (2), pp.023106. ⟨10.1117/1.OE.60.2.023106⟩
International audience; Plant water stress has been extensively studied using hyperspectral visible-and nearinfrared systems. Thermal imaging and the recent availability of widely tunable infrared quantum cascade laser (QCL) allow us to propose an ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba84c397bc561a75160a0526ebfa2d8a
https://hal.archives-ouvertes.fr/hal-03219536/document
https://hal.archives-ouvertes.fr/hal-03219536/document
Publikováno v:
IEEE Xplore Digital Library
21st International Conference on Transparent Optical Networks (ICTON 2019)
21st International Conference on Transparent Optical Networks (ICTON 2019), Jul 2019, Angers, France. pp.1-4, ⟨10.1109/ICTON.2019.8840448⟩
ICTON
21st International Conference on Transparent Optical Networks (ICTON 2019)
21st International Conference on Transparent Optical Networks (ICTON 2019), Jul 2019, Angers, France. pp.1-4, ⟨10.1109/ICTON.2019.8840448⟩
ICTON
International audience; Thermal imaging and the recent availability of widely tunable infrared QCL lasers (Quantum Cascade Laser) allow us to propose an active hyperspectral imaging system operating in mid-infrared (MIR) band to obtain simultaneously
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bee0d23400e2f521612ca22a10cdbcf6
https://hal.science/hal-02382528/document
https://hal.science/hal-02382528/document
Autor:
Mathilde Gay, Antoine Congar, Dominique Mammez, Laurent Lablonde, Raphael Butte, Nicolas Grandjean, Pascal Besnard, Stephane Trebaol
Publikováno v:
IEEE Xplore Digital Library
Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference 2019 (CLEO-Europe/EQEC 2019)
Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference 2019 (CLEO-Europe/EQEC 2019), Jun 2019, Munich, Germany. ⟨10.1109/CLEOE-EQEC.2019.8871773⟩
Scopus-Elsevier
Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference 2019 (CLEO-Europe/EQEC 2019)
Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference 2019 (CLEO-Europe/EQEC 2019), Jun 2019, Munich, Germany. ⟨10.1109/CLEOE-EQEC.2019.8871773⟩
Scopus-Elsevier
International audience; The first InGaN-based LDs were reported in 1996 by Nakamura and co-workers [1] and commercialized from 1999 by the Nichia Corporation. Since then, huge efforts have been devoted to the optimization of the epitaxial layers (dop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c3e7179b990b2d356430df55d4be19a
https://hal.science/hal-02267979
https://hal.science/hal-02267979
Publikováno v:
IEEE Xplore Digital Library
Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference 2019 (CLEO-Europe/EQEC 2019)
Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference 2019 (CLEO-Europe/EQEC 2019), Jun 2019, Munich, Germany. ⟨10.1109/CLEOE-EQEC.2019.8871652⟩
Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference 2019 (CLEO-Europe/EQEC 2019)
Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference 2019 (CLEO-Europe/EQEC 2019), Jun 2019, Munich, Germany. ⟨10.1109/CLEOE-EQEC.2019.8871652⟩
International audience; Nowadays, narrow linewidth lasers are unavoidable tools for fundamental and applied physics. One promising approach to generate coherent laser emission is based on stimulated Brillouin scattering (SBS) optical nonlinearity. Im
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d18c7eae2f0c34997694e8a2b07f0991
https://hal.archives-ouvertes.fr/hal-02267980
https://hal.archives-ouvertes.fr/hal-02267980
Publikováno v:
OSA Continuum
OSA Continuum, OSA Publishing, 2019, 2 (12), pp.3539-3545. ⟨10.1364/OSAC.2.003539⟩
OSA Continuum, 2019, 2 (12), pp.3539-3545. ⟨10.1364/OSAC.2.003539⟩
OSA Continuum, OSA Publishing, 2019, 2 (12), pp.3539-3545. ⟨10.1364/OSAC.2.003539⟩
OSA Continuum, 2019, 2 (12), pp.3539-3545. ⟨10.1364/OSAC.2.003539⟩
International audience; We report a technique based upon the cavity ringdown method that enables to characterize the Brillouin gain coefficient directly in a laser cavity. Material gain, optical cavity parameters and lasing properties can be extracte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c185799eab1ba4d9ad21f1119c0d71ef
http://arxiv.org/abs/1906.09095
http://arxiv.org/abs/1906.09095