Coherent Phonon Detection in Ge with a Femtosecond Laser
PAN Xin-Yu, WANG Shu-Feng, HUANG Wen-Tao, YANG Hong, LI Xia, JIANG Hong-Bing, GONG Qi-Huang
State Key Laboratory for Mesoscopic Physics and Department of
Physics, Peking University, Beijing 100871
Coherent Phonon Detection in Ge with a Femtosecond Laser
PAN Xin-Yu;WANG Shu-Feng;HUANG Wen-Tao;YANG Hong;LI Xia;JIANG Hong-Bing;GONG Qi-Huang
State Key Laboratory for Mesoscopic Physics and Department of
Physics, Peking University, Beijing 100871
关键词 ：
78.47.+p ,
42.65.Re ,
43.35.Sx ,
63.20.-e
Abstract ： A highly sensitive femtosecond photodeflection spectroscopy technique was first developed experimentally. Using femtosecond laser pulses we have detected ultrafast coherent phonon emission in a Ge plate. It is found that the ultrafast femtosecond laser pulses generate coherent phonons in the plate via the electronic mechanism. Supersonic expansion of photoexcited electron-hole plasma is observed.
Key words ：
78.47.+p
42.65.Re
43.35.Sx
63.20.-e
出版日期: 2001-07-01
:
78.47.+p
42.65.Re
(Ultrafast processes; optical pulse generation and pulse compression)
43.35.Sx
(Acoustooptical effects, optoacoustics, acoustical visualization, Acoustical microscopy, and acoustical holography)
63.20.-e
(Phonons in crystal lattices)
引用本文:
PAN Xin-Yu;WANG Shu-Feng;HUANG Wen-Tao;YANG Hong;LI Xia;JIANG Hong-Bing;GONG Qi-Huang. Coherent Phonon Detection in Ge with a Femtosecond Laser
[J]. 中国物理快报, 2001, 18(7): 979-981.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2001/V18/I7/979
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2001, Vol. 18 
