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Author:

王丽 (王丽.) | 韩秀友 (韩秀友.)

Indexed by:

CQVIP PKU CSCD

Abstract:

基于能量守恒和三波耦合波方程,建立了超短脉冲在参变过程中二次谐波产生时的Ⅰ类和Ⅱ类相位匹配条件、基波与谐波之间的群速延迟时间、以及群速失配对晶体长度限制的理论基础.以负单轴非线性光学晶体CsLiB6O10为例,分析和数值计算了超短脉冲宽度为100 fs时,谐波的群速匹配长度随基波波长变化的规律.研究结果表明在Ⅰ类相位匹配条件下,基波波长为642 nm时,群速延迟最小,相应的群速匹配晶体长度最长为19.1 mm;在Ⅱ类相位匹配条件下,基波波长为767 nm,群速延迟最小,群速匹配长度最长为0.89 mm.

Keyword:

群速延迟 频率变换 非线性光学 光学参变效应 超短脉冲

Author Community:

  • [ 1 ] [王丽]北京工业大学
  • [ 2 ] [韩秀友]中国科学院上海光学精密机械研究所

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Source :

光学学报

ISSN: 0253-2239

Year: 2007

Issue: 2

Volume: 27

Page: 313-317

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: 2

Chinese Cited Count:

30 Days PV: 2

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