Supercontinuum Generation in Atmospheric-Pressure Nitrogen Using a Tightly Focused Intense Femtosecond Laser Beam
QIN Yuan-Dong, ZHU Chang-Jun, YANG Hong, GONG Qi-Huang
Department of Physics, Mesoscopic Physics Laboratory, Peking University, Beijing 100871
Supercontinuum Generation in Atmospheric-Pressure Nitrogen Using a Tightly Focused Intense Femtosecond Laser Beam
QIN Yuan-Dong;ZHU Chang-Jun;YANG Hong;GONG Qi-Huang
Department of Physics, Mesoscopic Physics Laboratory, Peking University, Beijing 100871
关键词 ：
33.80.-b ,
42.65.Ky ,
52.40.Nk
Abstract ： Supercontinuum generation in atmospheric-pressure nitrogen by a focused intense femtosecond Ti: sapphire laser was studied at various pulse durations and energies. The generated supercontinuum was greatly blue-broadened due to self-phase modulation in the plasma produced. The measured blue-broadening Δω is proportional to pulse intensity for fixed pulse duration, and values up to 0.7ω (ω being the original laser frequency) was obtained with a pulse energy of 9.5 mJ and minimum duration of 100 fs.
Key words ：
33.80.-b
42.65.Ky
52.40.Nk
出版日期: 2000-06-01
:
33.80.-b
(Photon interactions with molecules)
42.65.Ky
(Frequency conversion; harmonic generation, including higher-order harmonic generation)
52.40.Nk
引用本文:
QIN Yuan-Dong;ZHU Chang-Jun;YANG Hong;GONG Qi-Huang. Supercontinuum Generation in Atmospheric-Pressure Nitrogen Using a Tightly Focused Intense Femtosecond Laser Beam[J]. 中国物理快报, 2000, 17(6): 413-415.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2000/V17/I6/413
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2000, Vol. 17 
