Compression of harmonic pulses by using material dispersion

被引：6

作者：

Kim, KT ^{[1
]}

Kim, CM

Baik, MG

Umesh, G

Nam, CH

机构：

[1] Korea Adv Inst Sci & Technol, Dept Phys, Taejon 305701, South Korea

[2] Korea Adv Inst Sci & Technol, Coherent Xray Res Ctr, Taejon 305701, South Korea

[3] Kyungwon Univ, Dept Phys, Seongnam 461701, Gyeonggi Do, South Korea

[4] Natl Inst Technol Karnataka, Dept Phys, Surathkal 575025, India

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2004年 / 79卷 / 05期

关键词：

D O I：

10.1007/s00340-004-1601-8

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We utilize the dispersion property of an X-ray filter material for the generation of a single sub-50-as pulse from high-order harmonics. The attosecond pulse, formed by selecting the spectral range of high-order harmonic radiation, contains an intrinsic chirp corresponding to the quadratic phase variation during a half cycle of a laser pulse. We show that this chirp can be compensated by using the negative group-delay dispersion of a thin X-ray filter, compressing the attosecond pulse down to sub-50-as.

引用

页码：563 / 567

页数：5

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