The influence of electron loss on threshold value in the process of optical breakdown in air

ZHANG Ping; BIAN Bao-min; QIAN Yan; LI Zhen-hua; HE An-zhi; NI Xiao-wu

Through discussing physical mechanism of optical breakdown in air caused by high power laser and ionization,the formula of free electron density in laser focus regime was attained.In addition,the breakdown threshold formula was also obtained after considering the energy loss of electron elastic collision and recombination.The calculated results are consistent with the experimental data.

Corresponding author: NI Xiao-wu, nxw@mail.njust.edu.cn

1. Department of Information Physics and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China

Received Date: 2004-06-26

Accepted Date: 2004-09-07

Available Online: 2005-09-25

Abstract: Through discussing physical mechanism of optical breakdown in air caused by high power laser and ionization,the formula of free electron density in laser focus regime was attained.In addition,the breakdown threshold formula was also obtained after considering the energy loss of electron elastic collision and recombination.The calculated results are consistent with the experimental data.

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Reference (11)

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The influence of electron loss on threshold value in the process of optical breakdown in air

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