1Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080
2Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039
Diagnostics of Femtosecond Laser-Plasmas Using Fundamental and Second Harmonic Emission
1Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080
2Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039
Abstract： By observing the fundamental and second harmonic emission from a plasma produced by a 150fs, 5mJ laser at 800nm, the electron temperature, the expansion speed and the scalelength of the plasma have been diagnosed. Moreover the polarization of the fundamental and second harmonic emission has been studied. This could be a useful diagnostic for modulation at the critical surface of the plasma.
ZHAO Li-Zeng;ZHANG Ping;FENG Bao-Hua;WEI Zhi-Yi;ZHANG Jie. Diagnostics of Femtosecond Laser-Plasmas Using Fundamental and Second Harmonic Emission[J]. 中国物理快报, 2000, 17(11): 818-820.
ZHAO Li-Zeng, ZHANG Ping, FENG Bao-Hua, WEI Zhi-Yi, ZHANG Jie. Diagnostics of Femtosecond Laser-Plasmas Using Fundamental and Second Harmonic Emission. Chin. Phys. Lett., 2000, 17(11): 818-820.
2000, Vol. 17 
