Enhancement of third harmonic generation in air filamentation using obstacles

doi:10.1088/1674-1056/24/3/034207

中国物理B ›› 2015, Vol. 24 ›› Issue (3): 34207-034207.doi: 10.1088/1674-1056/24/3/034207

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Enhancement of third harmonic generation in air filamentation using obstacles

刘晓龙^a, 鲁欣^b, 杜志贵^a, 马景龙^b, 李玉同^b, 张杰^{b c}

a Academy of Opto-electronics, Chinese Academy of Sciences, Beijing 100094, China;
b Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
c Key Laboratory for Laser Plasmas (MoE) and Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, China

收稿日期:2014-11-04 修回日期:2014-11-15 出版日期:2015-03-05 发布日期:2015-03-05
基金资助:
Project supported by the National Key Technology R&D Program of the Ministry of Science and Technology, China (Grant No. 2012BAC23B00) and the National Natural Science Foundation of China (Grants No. 11404335).

Enhancement of third harmonic generation in air filamentation using obstacles

Liu Xiao-Long (刘晓龙)^a, Lu Xin (鲁欣)^b, Du Zhi-Gui (杜志贵)^a, Ma Jing-Long (马景龙)^b, Li Yu-Tong (李玉同)^b, Zhang Jie (张杰)^{b c}

a Academy of Opto-electronics, Chinese Academy of Sciences, Beijing 100094, China;
b Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
c Key Laboratory for Laser Plasmas (MoE) and Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, China

Received:2014-11-04 Revised:2014-11-15 Online:2015-03-05 Published:2015-03-05
Contact: Liu Xiao-Long E-mail:liuxiaolong@aoe.ac.cn
Supported by:
Project supported by the National Key Technology R&D Program of the Ministry of Science and Technology, China (Grant No. 2012BAC23B00) and the National Natural Science Foundation of China (Grants No. 11404335).

摘要/Abstract

摘要：

The intensity of third harmonic emission in air filamentation disturbed by copper fibers and alcohol droplets has been investigated experimentally. Enhancement of the third harmonic emission up to more than one order of magnitude has been observed. The physical mechanism of third harmonic enhancement is attributed to suppression of the destructive interference by comparison of the experimental results and it is closely related to the type, size, and relative position of the obstacles.

关键词: third harmonic emission, filamentation, femtosecond laser pulse

Abstract:

Key words: third harmonic emission, filamentation, femtosecond laser pulse

中图分类号: (Frequency conversion; harmonic generation, including higher-order harmonic generation)

42.65.Ky

52.38.Hb (Self-focussing, channeling, and filamentation in plasmas) 42.65.Re (Ultrafast processes; optical pulse generation and pulse compression)

刘晓龙, 鲁欣, 杜志贵, 马景龙, 李玉同, 张杰. Enhancement of third harmonic generation in air filamentation using obstacles[J]. 中国物理B, 2015, 24(3): 34207-034207.

Liu Xiao-Long (刘晓龙), Lu Xin (鲁欣), Du Zhi-Gui (杜志贵), Ma Jing-Long (马景龙), Li Yu-Tong (李玉同), Zhang Jie (张杰). Enhancement of third harmonic generation in air filamentation using obstacles[J]. Chin. Phys. B, 2015, 24(3): 34207-034207.

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Enhancement of third harmonic generation in air filamentation using obstacles

Enhancement of third harmonic generation in air filamentation using obstacles

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