Coherence Measurement of White Light Emission from Femtosecond Laser Propagation in Air
JIN Zhan1, ZHANG Jie1, LIU Yun-Quan1, LI Kun1, YUAN Xiao-Hui1,2, HAO Zuo-Qiang1, ZHENG Jun1, LU Xin1, LI Yu-Tong1, WANG Zhao-Hua1, LING Wei-Jun1, WEI Zhi-Yi1
1Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080
2State Key Laboratory of Transient Optics Technology, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710068
Coherence Measurement of White Light Emission from Femtosecond Laser Propagation in Air
1Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080
2State Key Laboratory of Transient Optics Technology, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710068
Abstract： Strong white light emission is observed from femtosecond laser propagation in air. The divergence angle of the white light emission is measured to be about 5mrad. Young’s double-slits and a Michelson interferometer are used to investigate the coherence. The wavelength components of the white light emission are identified to have a good spatial coherence and a coherence time of about 0.5ps.
(Propagation, transmission, attenuation, and radiative transfer)
引用本文:
JIN Zhan;ZHANG Jie;LIU Yun-Quan;LI Kun;YUAN Xiao-Hui;HAO Zuo-Qiang;ZHENG Jun;LU Xin;LI Yu-Tong;WANG Zhao-Hua;LING Wei-Jun;WEI Zhi-Yi. Coherence Measurement of White Light Emission from Femtosecond Laser Propagation in Air[J]. 中国物理快报, 2005, 22(10): 2608-2610.
JIN Zhan, ZHANG Jie, LIU Yun-Quan, LI Kun, YUAN Xiao-Hui, HAO Zuo-Qiang, ZHENG Jun, LU Xin, LI Yu-Tong, WANG Zhao-Hua, LING Wei-Jun, WEI Zhi-Yi. Coherence Measurement of White Light Emission from Femtosecond Laser Propagation in Air. Chin. Phys. Lett., 2005, 22(10): 2608-2610.
2005, Vol. 22 
