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Revealing plasma oscillation in THz spectrum from laser plasma of molecular jet
Li, Na; Bai, Ya; Miao, Tianshi; Liu, Peng; Li, Ruxin; Xu, Zhizhan; peng@siom.ac.cn
2016
发表期刊Opt. Express
卷号24期号:20页码:23009
摘要Contribution of plasma oscillation to the broadband terahertz (THz) emission is revealed by interacting two-color (omega/2 omega) laser pulses with a supersonic jet of nitrogen molecules. Temporal and spectral shifts of THz waves are observed as the plasma density varies. The former owes to the changing refractive index of the THz waves, and the latter correlates to the varying plasma frequency. Simulation of considering photocurrents, plasma oscillation and decaying plasma density explains the broadband THz spectrum and the varying THz spectrum. Plasma oscillation only contributes to THz waves at low plasma density owing to negligible plasma absorption. At the longer medium or higher density, the combining effects of plasma oscillation and absorption results in the observed low-frequency broadband THz spectra. (C) 2016 Optical Society of America
文章类型Article
部门归属强光
DOI10.1364/OE.24.023009
资助者National Natural Science Foundation of China [11274326, 61521093, 61405222, 11134010, 11127901]; Shanghai Yangfan Program [14YF1406200] ; National Natural Science Foundation of China [11274326, 61521093, 61405222, 11134010, 11127901]; Shanghai Yangfan Program [14YF1406200] ; National Natural Science Foundation of China [11274326, 61521093, 61405222, 11134010, 11127901]; Shanghai Yangfan Program [14YF1406200] ; National Natural Science Foundation of China [11274326, 61521093, 61405222, 11134010, 11127901]; Shanghai Yangfan Program [14YF1406200]
收录类别SCI
资助者National Natural Science Foundation of China [11274326, 61521093, 61405222, 11134010, 11127901]; Shanghai Yangfan Program [14YF1406200] ; National Natural Science Foundation of China [11274326, 61521093, 61405222, 11134010, 11127901]; Shanghai Yangfan Program [14YF1406200] ; National Natural Science Foundation of China [11274326, 61521093, 61405222, 11134010, 11127901]; Shanghai Yangfan Program [14YF1406200] ; National Natural Science Foundation of China [11274326, 61521093, 61405222, 11134010, 11127901]; Shanghai Yangfan Program [14YF1406200]
WOS记录号WOS:000387543000063
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.siom.ac.cn/handle/181231/28705
专题强场激光物理国家重点实验室
通讯作者peng@siom.ac.cn
作者单位中国科学院上海光学精密机械研究所
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Li, Na,Bai, Ya,Miao, Tianshi,et al. Revealing plasma oscillation in THz spectrum from laser plasma of molecular jet[J]. Opt. Express,2016,24(20):23009.
APA Li, Na.,Bai, Ya.,Miao, Tianshi.,Liu, Peng.,Li, Ruxin.,...&peng@siom.ac.cn.(2016).Revealing plasma oscillation in THz spectrum from laser plasma of molecular jet.Opt. Express,24(20),23009.
MLA Li, Na,et al."Revealing plasma oscillation in THz spectrum from laser plasma of molecular jet".Opt. Express 24.20(2016):23009.
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