Diffusive to quasi-ballistic random laser: incoherent and coherent models

Autor: Stefan Rotter, Robin Kaiser, Q Baudouin, William Guerin, Yidong Chong, Matthias Liertzer

Publikováno v: Journal of the Optical Society of America B
Journal of the Optical Society of America B, Optical Society of America, 2016, 33, pp.1888. ⟨10.1364/JOSAB.33.001888⟩

International audience; We study the crossover between the diffusive and quasi-ballistic regimes of random lasers. In particular, we compare incoherent models based on the diffusion equation and the radiative transfer equation (RTE), which neglect al

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4c14b8e5c8f95cea9fcf935a4f2f58d

Raman process under condition of radiation trapping in a disordered atomic medium

Autor: L. V. Gerasimov, D. V. Kupriyanov, Q. Baudouin, V. M. Ezhova, Robin Kaiser, William Guerin

Publikováno v: Physical Review A
Physical Review A, American Physical Society, 2014, 90 (1), ⟨10.1103/PhysRevA.90.013814⟩

We consider the Raman process developing in a disordered medium of alkali-metal atoms when the scattered modes are trapped on a closed transition. Our theoretical analysis, based on numerical simulations of the Bethe-Salpeter equation for the light c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dfd8f3afd0d4d3c059dc882bbc9371c3
https://hal.archives-ouvertes.fr/hal-01902556

A cold-atom random laser

Autor: N. Mercadier, Q. Baudouin, V. Guarrera, William Guerin, Robin Kaiser

Publikováno v: Nature Physics
Nature Physics, Nature Publishing Group, 2013, 9, pp.357

Conventional lasers make use of optical cavities to provide feedback to gain media. Conversely, mirrorless lasers can be built by using disordered structures to induce multiple scattering, which increases the effective path length in the gain medium

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::845000570c9362e1173be63cbeb4a674
https://hal.archives-ouvertes.fr/hal-00769728

Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.

Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.