Dynamics of optical breakdown in air induced by single and double nanosecond laser pulses

In this paper, an optical breakdown in air induced by single and double nanosecond laser pulses was studied. A high power Nd:YAG laser beam was used for producing optical breakdown plasma in the air. The dynamics of breakdown plasma were studied using an optical probe beam. A portion of the laser be...

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Bibliographic Details
Published in:Physics of plasmas 2015-12, Vol.22 (12)
Main Authors: Mahdieh, Mohammad Hossein, Akbari Jafarabadi, Marzieh
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Absorptivity
AIR
BEAM TRANSPORT
BREAKDOWN
Electrons
Laser beams
LASER RADIATION
Lasers
NEODYMIUM LASERS
PHOTON BEAMS
PLASMA
Plasma physics
PULSES
Semiconductor lasers
YAG lasers
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Summary:In this paper, an optical breakdown in air induced by single and double nanosecond laser pulses was studied. A high power Nd:YAG laser beam was used for producing optical breakdown plasma in the air. The dynamics of breakdown plasma were studied using an optical probe beam. A portion of the laser beam was used, as the probe beam and was aligned to propagate (perpendicular to the pump beam) through the breakdown region. The transmission of the probe beam (through the breakdown region) was temporally measured for both single and double pulse irradiations. The results were used to describe the evolution of the induced plasma in both conditions. These results show that the plasma formation time and its absorptivity are strongly dependent on the single or double pulse configurations.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.4938511