Tunable sub-10-fs ultraviolet pulses generated by achromatic frequency doubling

被引：147

作者：

Baum, P ^{[1
]}

Lochbrunner, S ^{[1
]}

Riedle, E ^{[1
]}

机构：

[1] Univ Munich, Lehrstuhl BioMol Opt, D-80538 Munich, Germany

来源：

OPTICS LETTERS | 2004年 / 29卷 / 14期

关键词：

D O I：

10.1364/OL.29.001686

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Tunable UV pulses shorter than 10 fs are generated by achromatic frequency doubling of a noncollinear optical parametric amplifier. With a suitable two-prism sequence we achieve first- and second-order achromatic phase matching and increase the natural bandwidth of the nonlinear crystal by a factor of 80. Extremely broad UV spectra with a Fourier limit of 2.9 fs are generated in a 360-mum-thick beta-barium. berate crystal at a conversion efficiency of 20%. We compensate for the angular dispersion and the first-order chirp of the highly stable UV pulses with a second prism sequence and fully characterize the temporal pulse shape with zero-additional-phase spectral phase interferometry for direct electric-field reconstruction (ZAP-SPIDER). Pulses as short as 7 fs are generated by controlling the higher-order chirp with a deformable mirror. (C) 2004 Optical Society of America.

引用

页码：1686 / 1688

页数：3

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