Velocity-matched terahertz generation by optical rectification in an organic nonlinear optical crystal using a Ti:sapphire laser

被引：22

作者：

Brunner, Fabian D. J. ^{[1
]}

Schneider, Arno ^{[1
]}

Guenter, Peter ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, Inst Quantum Elect, Nonlinear Opt Lab, CH-8093 Zurich, Switzerland

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 06期

基金：

瑞士国家科学基金会;

关键词：

optical frequency conversion; optical materials; optical pulse generation; organic compounds; submillimetre wave generation; 2-CYCLOOCTYLAMINO-5-NITROPYRIDINE; SPECTROSCOPY;

D O I：

10.1063/1.3080214

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Broadband terahertz pulses have been generated in 2-cyclooctylamino-5-nitropyridine (COANP) single crystals by optical rectification of 150 fs laser pulses from an amplified Ti:sapphire laser operating at 776 nm. Due to better velocity-matching and a higher figure of merit, COANP allows more efficient terahertz generation between 0.2 and 2.4 THz than the benchmark electro-optic crystal ZnTe at this laser wavelength. The peak amplitude of the terahertz signal obtained in COANP was 2.5 times larger in the time-domain and 2.1 times larger in the frequency-domain compared to ZnTe. We achieved a 4.3 times higher energy conversion efficiency in COANP than in ZnTe.

引用

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