Optimized generation of THz pulses via optical rectification in the organic salt DAST

被引：42

作者：

Schneider, A ^{[1
]}

Biaggio, I

Günter, P

机构：

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

[2] Lehigh Univ, Dept Phys, Bethlehem, PA 18015 USA

来源：

OPTICS COMMUNICATIONS | 2003年 / 224卷 / 4-6期

关键词：

THz pulses; optical rectification; velocity-matching; DAST;

D O I：

10.1016/j.optcom.2003.07.013

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Short THz pulses can be generated via optical rectification in the organic salt DAST (4-N,N-dimethylamino-4'-N'-methyl stilbazolium tosylate) due to its large second-order nonlinear susceptibility d = 1010 pm/V (at lambda = 1318 nm). The efficiency of THz generation is affected by absorption and dispersion caused by several resonances of the crystals in the THz range. We found optimum generation conditions for sub-picosecond pump pulses around lambda = 1050 nm and a center frequency of 0.65 THz. This is in agreement with theory taking into account absorption and velocity-matching. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：337 / 341

页数：5

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