Zobrazeno 1 - 10
of 334
pro vyhledávání: '"J L Le Gouët"'
Publikováno v:
New Journal of Physics, Vol 15, Iss 6, p 063037 (2013)
Based on the similarity of paraxial diffraction and dispersion mathematical descriptions, the temporal imaging of optical pulses combines linear dispersive filters and quadratic phase modulations operating as time lenses. We consider programming a di
Externí odkaz:
https://doaj.org/article/219449f5503e4dceb16687000550fa60
Autor:
Paul R. Berman, J.-L. Le Gouët
Publikováno v:
Physical Review A. 103
A theory of pulse transmission is presented in which the medium through which the pulse propagates is characterized by an inhomogeneous distribution that is either an atomic frequency comb (AFC) or a medium of randomly spaced frequency spikes (RSM).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::338343854989f32758fb8b9a092c78e7
https://doi.org/10.1103/physreva.103.043723
https://doi.org/10.1103/physreva.103.043723
Publikováno v:
Physical Review B
Physical Review B, American Physical Society, 2019, 100 (16), pp.165107. ⟨10.1103/PhysRevB.100.165107⟩
Physical Review B, American Physical Society, 2019, 100 (16), pp.165107. ⟨10.1103/PhysRevB.100.165107⟩
We investigate the erbium flip-flop dynamics as a limiting factor of the electron spin lifetime and more generally as an indirect source of decoherence in rare-earth doped insulators. Despite the random isotropic arrangement of dopants in the host cr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9b2790dfc7ac960230f6703a6a917be
https://doi.org/10.1103/physrevb.100.165107
https://doi.org/10.1103/physrevb.100.165107
Autor:
Julie Armougom, Jean-Baptiste Dherbecourt, Vincent Lebat, Claudine Besson, Béatrice Augère, Didier Fleury, Myriam Raybaut, Nicolas Tanguy, Nicolas Cézard, Matthieu Valla, R. Santagata, Cédric Blanchard, Christophe Planchat, Quentin Berthomé, Antoine Godard, Ph. Nicolas, Thierry Huet, J.-M. Melkonian, S. Le Méhauté, Agnès Dolfi-Bouteyre, Th. Hamoudi, J.-L. Le Gouët, Didier Goular
Publikováno v:
Laser Congress 2019 (ASSL, LAC, LS&C).
DIfferential Absorption Lidars (DIAL) can be powerful tools for remote detection of various gaseous species. We report here on the instruments that we have recently developed, based on specific optical sources, for industrial safety applications, as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce9ab120e4e22389b7ed27c9551b5e2e
https://doi.org/10.1364/lsc.2019.lm2b.2
https://doi.org/10.1364/lsc.2019.lm2b.2
Autor:
Laurent Lombard, François Gustave, Pierre Bourdon, Anne Durécu, Hermance Jacqmin, J.-L. Le Gouët, Didier Fleury, Christophe Planchat, Agnès Dolfi-Bouteyre
Publikováno v:
Technologies for Optical Countermeasures XV.
Engine ignition using a laser requires very high peak power levels, that can be produced by solid-state lasers such as Yb:YAG passively Q-switched lasers. We developed high repetition rate diode pumped Yb:YAG micro-lasers to study the effect of cumul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75b50eb016291e555563913ba329b8fc
https://doi.org/10.1117/12.2325719
https://doi.org/10.1117/12.2325719
Publikováno v:
Physical Review A
Physical Review A, American Physical Society 2018, 97 (6), ⟨10.1103/PhysRevA.97.063816⟩
Physical Review A, American Physical Society 2018, 97 (6), ⟨10.1103/PhysRevA.97.063816⟩
We study photon echo generation in disordered media with the help of multiple scattering theory based on diagrammatic approach and numerical simulations. We show that a strong correlation exists between the driving fields at the origin of the echo an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c13b0e5e69d2e4050a944697929c7077
http://arxiv.org/abs/1803.06191
http://arxiv.org/abs/1803.06191
High Peak Power Single-Frequency Amplifier based on a Er-Yb Doped Polarization Maintaining LMA Fiber
Autor:
J.-L. Le Gouët, Hermance Jacqmin, Laurent Lombard, Pierre Bourdon, Anne Durécu, François Gustave
Publikováno v:
Scopus-Elsevier
We report on single-frequency all-fiber amplifiers based on PM Er-Yb doped P 2 O 5 -Al 2 O 3 -SiO 2 fibers. Peak power up to 700W at 1545nm for 730ns pulse duration has been obtained with a good beam quality and a 17dB PER was measured.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4cff9d8557933ace25f9a68cae455d3
https://doi.org/10.1364/cleo_at.2018.jth2a.120
https://doi.org/10.1364/cleo_at.2018.jth2a.120
Autor:
Sylvain Bordais, J.-L. Le Gouët, Yves Jaouën, Pierre Bourdon, Anne Durécu, Erik Lucas, Williams Renard, Laurent Lombard, Guillaume Canat
Publikováno v:
Optical Fiber Technology
Optical Fiber Technology, Elsevier, 2014, 20 (6), pp.678-687. ⟨10.1016/j.yofte.2014.06.010⟩
Optical Fiber Technology, Elsevier, 2014, 20 (6), pp.678-687. ⟨10.1016/j.yofte.2014.06.010⟩
International audience; We present design and performances of several eye-safe high peak power fiber lasers operating either around 1550 nm or 2000 nm. They share the limitations by nonlinear effects either Stimulated Brillouin Scattering for single
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d703f428875f8ee9620c7fd89ce94da8
https://doi.org/10.1016/j.yofte.2014.06.010
https://doi.org/10.1016/j.yofte.2014.06.010
Publikováno v:
Physical Review Letters
Physical Review Letters, American Physical Society, 2018, 120 (19), ⟨10.1103/PhysRevLett.120.197401⟩
Physical Review Letters, American Physical Society, 2018, 120 (19), ⟨10.1103/PhysRevLett.120.197401⟩
In Er$^{3+}$:Y$_2$SiO$_5$, we demonstrate the selective optical addressing of the $^{89}$Y$^{3+}$ nuclear spins through their superhyperfine coupling with the Er$^{3+}$ electronic spins possessing large Land\'e $g$-factors. We experimentally probe th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dcf9b1b5d5b86a5eb224c4f3f36cd5d3
https://pubmed.ncbi.nlm.nih.gov/29799251
https://pubmed.ncbi.nlm.nih.gov/29799251
Publikováno v:
2017 Pacific Rim Conference on Lasers and Electro-Optics (CLEO/Pacific Rim)
2017 Conference on Lasers and Electro-Optics-Pacific Rim (CLEO-PR)
2017 Conference on Lasers and Electro-Optics-Pacific Rim (CLEO-PR), Jul 2017, Singapore, Singapore. 3 p., ⟨10.1109/CLEOPR.2017.8118989⟩
2017 Conference on Lasers and Electro-Optics-Pacific Rim (CLEO-PR)
2017 Conference on Lasers and Electro-Optics-Pacific Rim (CLEO-PR), Jul 2017, Singapore, Singapore. 3 p., ⟨10.1109/CLEOPR.2017.8118989⟩
International audience; Coherent beam combining with active phase control is more than a simple laser power scaling technique. It can also be used to perform more efficient adaptive optics and to extend the capabilities of nonlinear optical devices.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56e20c74a001d507e2d812e0b15d0125
https://hal.archives-ouvertes.fr/hal-03141559/document
https://hal.archives-ouvertes.fr/hal-03141559/document