Critical slowing-down in photorefractive scattering below the self-oscillation threshold

Autor:	O. Shinkarenko, Serguey Odoulov, P. Mathey, P. Jullien
Rok vydání:	2005
Předmět:	Physics Optical pumping Phase transition Optics business.industry Scattering Oscillation Pump wave Orientation (geometry) Physics::Optics Photorefractive effect business Beam (structure)
Zdroj:	Conference Digest. 2000 International Quantum Electronics Conference (Cat. No.00TH8504).
Popis:	Summary from only given. Photorefractive crystals may generate new optical beams of the same frequency as a pump wave if the appropriate optical feedback is ensured with external mirrors or with a special choice of the pump beam orientation. The onset of oscillation in these coherent oscillators is similar either to the second order phase transition or first order phase transition. We report on the study of the threshold behaviour of the semilinear coherent oscillator with two counterpropagating pump waves. The beam of an Ar+-laser (0.51 /spl mu/m) is used to pump a 3.6-mm thick BaTiO/sub 3/ sample (PRC).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cf3a8aff5223ffeca9a4b9fe0cc65f14 https://doi.org/10.1109/iqec.2000.907840 Zobrazit plný text záznamu