光学精密工程2011，Vol.19Issue(2)：487-492,6.DOI:10.3788/OPE.20111902.0487
受激布里渊散射中Stokes光的反Stokes散射与慢光效应
Anti-Stokes scattering of Stokes light and slow light in stimulated Brillouin scattering
摘要
Abstract
In order to investigate the mechanism of slow-light effect via stimulated Brillouin scattering (SBS), the occurrence of the anti-Stokes scattering of Stokes light and the relationship between the anti-Stokes scattering and the mechanism of slow-light via SBS were researched. It is proved that the Stokes light can also be scattered by Brillouin ultrasounds besides the pump light in SBS. The scattering is anti-Stokes, and is a reversal process of the Stokes scattering of the pump light. Therefore, the pump and Stokes lights in SBS experience a back-and-forth scatterings in Brillouin sound fields. On this premise, a model was presented to depict the slow-light effect, in which the optical distance of Stokes wave was enhanced due to the back-and-forth scatterings and the pulse was slowed down as a result. Experiments show the deduced delaying time for the Stokes pulse given by the model agrees with former results. Which suggest that the Stokes light can be anti-Stokes scattered in Brillouin scattered by Brillouin sound fields and also that the enlarged optical distance due to multiple scatterings would be the origin of light slowing in SBS.关键词
受激布里渊散射/慢光/反斯托克斯散射Key words
Stimulated Brillouin Scattering(SBS) / slow light/ anti-Stokes scattering分类
数理科学引用本文复制引用
朱永祥,陆启生..受激布里渊散射中Stokes光的反Stokes散射与慢光效应[J].光学精密工程,2011,19(2):487-492,6.基金项目
激光与物质相互作用国家重点实验室基金资助项目(No.SKI.LIM0903-02) （No.SKI.LIM0903-02）
