Polarization-dependent femtosecond laser filamentation in air

Zhongbin Zhu; Tie-Jun Wang; Yaoxiang Liu; Na Chen; Huifang Zhang; Haiyi Sun; Hao Guo; Jianhao Zhang; Xuan Zhang; Gengyu Li; Candong Liu; Zhinan Zeng; Jiansheng Liu; See Leang Chin; Ruxin Li; Zhizhan Xu

doi:10.3788/COL201816.073201

Journals >Chinese Optics Letters >Volume 16 >Issue 7 >Page 073201 > Article

Chinese Optics Letters
Vol. 16, Issue 7, 073201 (2018)

Polarization-dependent femtosecond laser filamentation in air

Zhongbin Zhu^1、2, Tie-Jun Wang^2、*, Yaoxiang Liu², Na Chen², Huifang Zhang¹, Haiyi Sun², Hao Guo², Jianhao Zhang², Xuan Zhang², Gengyu Li², Candong Liu², Zhinan Zeng², Jiansheng Liu², See Leang Chin³, Ruxin Li², and Zhizhan Xu²

Author Affiliations

¹Department of Physics, Shanghai University, Shanghai 200444, China

²State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

³Centre d’Optique, Photonique et Laser (COPL) and Département de physique, de génie physique et d’optique, Université Laval, Québec, Québec G1V 0A6, Canada

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DOI: 10.3788/COL201816.073201 Cite this Article Set citation alerts

Zhongbin Zhu, Tie-Jun Wang, Yaoxiang Liu, Na Chen, Huifang Zhang, Haiyi Sun, Hao Guo, Jianhao Zhang, Xuan Zhang, Gengyu Li, Candong Liu, Zhinan Zeng, Jiansheng Liu, See Leang Chin, Ruxin Li, Zhizhan Xu. Polarization-dependent femtosecond laser filamentation in air[J]. Chinese Optics Letters, 2018, 16(7): 073201 Copy Citation Text

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Abstract

We report on a systematic study of the laser polarization effect on a femtosecond laser filamentation in air. By changing the laser’s ellipticity from linear polarization to circular polarization, the onset position of laser filament formation becomes farther from the focusing optics, the filament length is shorter, and less laser energy is deposited. The laser polarization effect on air filaments is supported by a simulation and analysis of the polarization-dependent critical power and ionization rates in air.