Femtosecond laser filament guided negative coronas

Tie-Jun Wang; Jianhao Zhang; Zhongbin Zhu; Yaoxiang Liu; Na Chen; Hao Guo; Haiyi Sun; Yuxin Leng; See Leang Chin; Ruxin Li

doi:10.1063/1.5133784

journal article·2020-03-01Open access

Femtosecond laser filament guided negative coronas

Tie-Jun Wang, Jianhao Zhang, Zhongbin Zhu, Yaoxiang Liu, Na Chen, Hao Guo, Haiyi Sun, Yuxin Leng, See Leang Chin, Ruxin Li

AIP Advances· Volume 10· Issue 3

Publisher page Open full text

Source abstract

Abstract

We report on the experimental investigation of femtosecond laser filament guided negative coronas. When the coupling between the filament and negative corona was weak, the side fluorescence spectral analysis confirmed the existence of impact ionization although less effect on the filament length was observed. When the coupling was strong so that the negative corona was well connected with the filament, the filament guided coronas at the ends of laser filaments were observed. The newly generated negative coronas were confined around the filament axis, and no streamer-type of coronas guided by the filament was observed under conditions similar to those reported in the work of Wang et al. [Sci. Rep. 5, 18681 (2015)] although both could give rise to an elongation of the filament. A physical picture was proposed to understand the processes of the laser filament guided coronas.

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Research context

OpenAlex topics: Laser-Matter Interactions and Applications · Advanced Fiber Laser Technologies · Laser-induced spectroscopy and plasma

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics and CAS Center for Excellence in Ultra-intense Laser Science, Chinese Academy of Sciences 1 , No. 390, Qinghe Road, Jiading District, Shanghai 201800, China

Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences 2 , Beijing 100049, China

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

Funding

International Partnership Program of CAS · Strategic Priority Research Program of CAS

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Show source-provided references

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