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圆偏振光和线偏振光在正常色散材料中的时空自压缩 被引量：2

Spatiotemporal Self-Compression of Circularly Polarized and Linearly Polarized Pulses in Normally Dispersive Media
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摘要 实验研究了圆偏振和线偏振高强度飞秒激光脉冲在正常色散材料中传输时的时空自压缩现象。实验中利用BK7玻璃作为正色散材料,比较研究了不同偏振入射情况下脉冲波形及频谱的变化规律。圆偏振光入射时,可以获得更短脉冲宽度的压缩脉冲和更窄的光谱宽度。在圆偏振光入射条件下,50 fs入射脉冲成功地自压缩到了19 fs,获得了大于2.5倍的压缩倍率。所以利用圆偏振光可以获得更短压缩脉冲,更大能量,更好光束质量的激光。 Spatiotemporal self-compression of high-intensity femtosecond pulses with linear and circular polarization in normally dispersive media is experimentally studied. In the experiment, a piece of BK7 glass plate is used as the normally dispersive media. The temporal and spectral behavior of the pulse transmitting in the glass material under different input pulse conditions is studied. The compressed pulses are much shorter in duration and narrower in spectral bandwidth by using circularly polarized pulses than linearly polarized pulses. The 50 fs pulses with circular polarization are successfully compressed to 19fs, with a compression ratio more than 2.5.
作者 李小芳 刘军 陈晓伟 曾志男 李儒新
机构地区 中国科学院上海光学精密机械研究所强场激光物理国家重点实验室
出处 《光学学报》 EI CAS CSCD 北大核心 2006年第12期1882-1886,共5页 Acta Optica Sinica
基金 国家自然科学基金(69925513 19974058) 中国科技部专项基金(G1999075204)资助课题
关键词 超快光学 飞秒脉冲 自压缩 圆偏振光 ultrafast optics femtosecond pulse self-compression circular polarization
分类号 O437 [机械工程—光学工程]
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参考文献16

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共引文献7

同被引文献28

  • 1郝作强,张杰.超短脉冲强激光在空气中的传输[J].物理,2004,33(10):741-747. 被引量：8
  • 2陈晓伟,刘军,朱毅,冷雨欣,葛晓春,李儒新,徐至展.高强度飞秒激光脉冲在空气中的自压缩[J].物理学报,2005,54(8):3665-3669. 被引量：5
  • 3陈晓伟,朱毅,刘军,冷雨欣,葛晓春,李儒新,徐至展.飞秒激光脉冲在正色散固体材料中的自压缩[J].物理学报,2005,54(11):5178-5183. 被引量：8
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引证文献2

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光学学报
2006年 第12期

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