期刊
OPTICS LETTERS
卷 37, 期 5, 页码 899-901出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.37.000899
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资金
- Swiss National Science Foundation [PP00P2_128493/1, 200021_122111/1]
- SwissFEL
- Swiss National Science Foundation (SNF) [200021_122111] Funding Source: Swiss National Science Foundation (SNF)
We present the generation of high-power single-cycle terahertz (THz) pulses in the organic salt crystal 2-[3-(4-hydroxystyryl)-5.5-dimethylcyclohex-2-enylidene]malononitrile or OH1. Broadband THz radiation with a central frequency of 1.5 THz (lambda(c) = 200 mu m) and high electric field strength of 440 kV/cm is produced by optical rectification driven by the signal of a powerful femtosecond optical parametric amplifier. A 1.5% pump to THz energy conversion efficiency is reported, and pulse energy stability better than 1% RMS is achieved. An approach toward the realization of higher field strength is discussed. (C) 2012 Optical Society of America
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