Third-Order Harmonic Generation in Atmospheric Air with
Focused Intense Femtosecond Laser Pulses
ZHU Chang-Jun1 , QIN Yuan-Dong1 , YANG Hong1 , WANG Shu-Feng1 , GONG Qi-Huang 1,2
1 National Laboratory for Mesoscopiof Physics and Department of Physics, Peking University Beijing 100871
2 Institute of Physics, Chinese Academy of Sciences, Beijing 100080
Third-Order Harmonic Generation in Atmospheric Air with
Focused Intense Femtosecond Laser Pulses
ZHU Chang-Jun1 ; QIN Yuan-Dong1 ;YANG Hong1 ;WANG Shu-Feng1 ;GONG Qi-Huang 1,2
1 National Laboratory for Mesoscopiof Physics and Department of Physics, Peking University Beijing 100871
2 Institute of Physics, Chinese Academy of Sciences, Beijing 100080
关键词 ：
42.65.Jx ,
42.65.Ky
Abstract ： Generation of third-order harmonics at 800 nm of femtosecond laser pulses is studied in neutral atmospheric air and in plasma of optical breakdown in air. Its efficiency is measured at different fundamental laser intensities. A maximum efficiency is observed at the intensity when optical breakdown in atmospheric air starts. The factors that exhibit the main effects on the harmonic generation, including self-focusing in a neutral air and self-focusing in plasma, are discussed.
Key words ：
42.65.Jx
42.65.Ky
出版日期: 2001-01-01
:
42.65.Jx
(Beam trapping, self-focusing and defocusing; self-phase modulation)
42.65.Ky
(Frequency conversion; harmonic generation, including higher-order harmonic generation)
引用本文:
ZHU Chang-Jun; QIN Yuan-Dong;YANG Hong;WANG Shu-Feng;GONG Qi-Huang;. Third-Order Harmonic Generation in Atmospheric Air with
Focused Intense Femtosecond Laser Pulses
[J]. 中国物理快报, 2001, 18(1): 57-59.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2001/V18/I1/57
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2001, Vol. 18 
