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Author:

王丽 (王丽.) (Scholars:王丽) | 韩秀友 (韩秀友.)

Indexed by:

CQVIP PKU CSCD

Abstract:

对超短强激光脉冲在CsLiB6O10晶体中的群速失配进行了理论分析,采用傅里叶变换法推导超短脉冲二次谐波的耦合波方程.在I类相位匹配下数值计算了脉冲宽度50 fs的基波532 nm,在CsLiB6O10晶体长度为0.5 mm时产生二次谐波(266 nm)的群速延迟量约100 fs,并且随着晶体长度的增长,二次谐波的脉冲宽度几乎线性展宽.并得到了群速失配量△β1(2)=226.243 fs/mm,低阶和二阶群速色散系数分别为β2(2)=210.120 fs2/mm,β2(3)=65.587 fs3/mm.其结果表明由于群速延迟和群速色散导致了谐波脉宽展宽和形变.

Keyword:

频率变换 脉冲展宽 非线性光学 激光超短脉冲 群速失配 CsLiB6O10晶体

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: 2004

Issue: 9

Volume: 24

Page: 1249-1252

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: 5

Chinese Cited Count:

30 Days PV: 12

Affiliated Colleges:

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