着色丙酮中受激热散射和纯丙酮中受激布里渊散射的频率响应

J4 ›› 2009, Vol. 26 ›› Issue (4): 473-476.

着色丙酮中受激热散射和纯丙酮中受激布里渊散射的频率响应

刘安玲¹ 张为俊² 高晓明²

1长沙学院电子与通信工程系长沙 410003; 2中科院安徽光学精密机械研究所非线性光学实验室合肥 230031

收稿日期:2008-09-28 修回日期:2008-11-12 出版日期:2009-07-28 发布日期:2009-06-29
通讯作者: 刘安玲（1962－），女，湖南省平江县人，博士，副教授，主要从事量子光学和非线性光学研究。 E-mail:anling919@163.com
基金资助:
2006年湖南省教育厅科学研究课题（05c062）、2004年长沙学院人才引进科学研究基金资助课题

Frequency responses of stimulated thermal scattering in colored acetone and stimulated Brillouin scattering in pure acetone

LIU An-Ling¹ , ZHANG Wei-Jun², GAO Xiao-Ming²

1Department of electronic and Telecommunications Engineering, Changsha College, Changsha, 410003; 2Nonlinear Optics Laboratory, Anhui Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Hefei, 230031

Received:2008-09-28 Revised:2008-11-12 Published:2009-07-28 Online:2009-06-29

摘要/Abstract

摘要：

受激布里渊散射(SBS)的频移量远大于受激热散射(STS)，达到GHz的量级；而STS的频移量很小，一般只有几十M Hz；在以前的实验中，要区分这两种散射需要非常复杂的实验系统，或者高精度、大测量范围的光谱分析仪器，这在一般的实验室条件下是难于满足的。实验研究了掺杂Cu(NO3)2的丙酮溶液中产生的STS与纯丙酮中的SBS的频率响应。结果显示：随着泵浦能量的增加，SBS的线宽随机起伏，而STS的线宽有规律地变化。这可以替代高精度、大测量范围的光谱仪或者复杂系统而成为一种简便的区分STS和SBS的方法。据我们所知，目前文献中尚无相关报道。

关键词: 非线性光学, 受激热散射, 受激布里渊散射, 频率

Abstract:

In previous experiments the very complicated system or high-precision and large-range spectra-analysis apparatus was used to distinguish stimulated thermal scattering (STS) and stimulated Brillouin scattering (SBS) because the frequency shift of SBS is more larger than of STS which is a few tens MHz generally, but the shift of SBS reach several GHz typically. It will be difficult for common laboratorial conditions. Frequency responses of STS in Cu(NO3)2 colored acetone and SBS in pure acetone were investigated experimentally. It was showed that linewidth of SBS fluctuated random and of STS changed regularly as pump power increased. It can become a convenient and cheap approach to distinguish STS and SBS instead of high-precision and large-range spectrometer or complicated system. This method, to our knowledge, has not been reported in references.

Key words: nonlinear optics, stimulated thermal scattering, stimulated Brillouin scattering, frequency

刘安玲张为俊高晓明. 着色丙酮中受激热散射和纯丙酮中受激布里渊散射的频率响应[J]. J4, 2009, 26(4): 473-476.

LIU An-Ling, ZHANG Wei-Jun, GAO Xiao-Ming. Frequency responses of stimulated thermal scattering in colored acetone and stimulated Brillouin scattering in pure acetone[J]. J4, 2009, 26(4): 473-476.

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