Coherence Measurement of White Light Emission from Femtosecond Laser Propagation in Air

Chin. Phys. Lett.

2005, Vol. 22

Issue (10): 2608-2610 DOI:

Original Articles

Coherence Measurement of White Light Emission from Femtosecond Laser Propagation in Air

JIN Zhan¹;ZHANG Jie¹;LIU Yun-Quan¹;LI Kun¹;YUAN Xiao-Hui^1,2;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

Cite this article:

JIN Zhan, ZHANG Jie, LIU Yun-Quan et al 2005 Chin. Phys. Lett. 22 2608-2610

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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.

Keywords: 52.38.Hb 42.65.Jx 42.68.Ay

Published: 01 October 2005

PACS:	52.38.Hb	(Self-focussing, channeling, and filamentation in plasmas)
	42.65.Jx	(Beam trapping, self-focusing and defocusing; self-phase modulation)
	42.68.Ay	(Propagation, transmission, attenuation, and radiative transfer)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2005/V22/I10/02608

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	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

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