Tunable narrow band THz wave generation from laser induced gas plasma

被引：9
|
作者：
Das, Jayashis [1 ]
Yamaguchi, Masashi [1 ]
机构：
[1] Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, Troy, NY 12180 USA
来源：
OPTICS EXPRESS | 2010年 / 18卷 / 07期
关键词：
TERAHERTZ GENERATION; COHERENT CONTROL; FORM SYNTHESIS; PULSES; RECTIFICATION; EMISSION; AIR;
D O I：
10.1364/OE.18.007038
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Tunable narrowband THz waveforms were generated from laser induced gas plasma using shaped optical pulses. Square wave phase patterns were fed to a spatial light modulator. The frequency and amplitude of the square wave phase were used as parameters to tailor the terahertz waveforms. The dependence of THz waveforms on these parameters has been studied in detail. The presence of the ionization thresholds for pulse shaping is also discussed. We have demonstrated the wide and continuous tunability of the central frequency of the narrowband THz waveform from 2.5 to 7.5THz. (C) 2010 Optical Society of America
引用
收藏
页码：7038 / 7046
页数：9
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