Attosecond pulse synthesis and arbitrary waveform generation with cascaded harmonics of an injection-seeded high-power Q-switched Nd:YAG laser

被引：8

作者：

Chen, W. -J. ^{[1
]}

Wang, H. -Z. ^{[1
]}

Lin, R. -Y. ^{[2
]}

Lee, C. -K. ^{[3
]}

Pan, C. -L. ^{[1
,4
,5
]}

机构：

[1] Natl Tsing Hua Univ, Dept Phys, Hsinchu 30013, Taiwan

[2] Natl Chiao Tung Univ, Dept Photon, Hsinchu 30010, Taiwan

[3] Natl Sun Yat Sen Univ, Dept Photon, Kaohsiung 80424, Taiwan

[4] Natl Tsing Hua Univ, Inst Photon Technol, Hsinchu 30013, Taiwan

[5] Natl Tsing Hua Univ, Frontier Res Ctr Fundamental & Appl Sci Matters, Hsinchu 30013, Taiwan

来源：

LASER PHYSICS LETTERS | 2012年 / 9卷 / 03期

关键词：

sub-cycle; attosecond; harmonic; carrier envelope phase; waveform; CYCLE PULSES; HYDROGEN; DRIVEN; NM;

D O I：

10.1002/lapl.201110117

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a new scheme of attosecond pulse generation by starting from a narrow-band transform-limited high-power solid-state laser and phase lock the fundamental and its first four cascaded harmonics generated by the second-order nonlinear optical processes. The relative phase among the optical fields of the harmonics can be maintained a constant at least for thousands of nanosecond pulses. The worst-case relative phase fluctuation is 0.04p rad. It is shown that sub-single-cycle (similar to 0.37 cycle) sub-femtosecond (360 attosecond) pulses with carrier-envelope phase (CEP) control can be generated in this manner. The peak intensity of each pulse exceeds 1014 W/cm2 when it is focused to a spot size of 20 mu m. We also demonstrate synthesis of square and saw-tooth waveforms. ((c) 2012 by Astro Ltd., Published exclusively by WILEY-VCH Verlag GmbH & Co. KGaA) ((c) 2011 by Astro Ltd., Published exclusively by WILEY-VCH Verlag GmbH & Co. KGaA)

引用

页码：212 / 218

页数：7

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