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

Mahdieh, Mohammad Hossein; Jafarabadi, Marzieh Akbari

doi:10.1063/1.4938511

Cited by 4 publications

(2 citation statements)

References 21 publications

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“…Recently, by using a pump-probe beam technique, we studied the dynamics of air breakdown plasma for single pulse and double pulse arrangements [19], [20].…”

Section: Introductionmentioning

confidence: 99%

Optical Opacity of Laser Induced Plasma in Distilled Water with NaCl and TiO2 Nanoparticles Impurities

Mozaffari

Jafarabadi

Mahdieh

2017

IJOP

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ABSTRACT-In this paper, the dynamic behavior of laser induced optical breakdown in impure water was studied by using a pumpprobe technique. The plasma was induced by a 1064 nm Nd:YAG laser pulse (with pulse duration ~10 ns) in distilled water with two types of impurities: (I) a solution (highly diluted salt water as a conductor) and (II) a colloidal (TiO 2 in colloidal nanoparticle form as a dielectric); and finally the results were compared. The results show that, for both liquids, the probe beam transmission is reduced with pump laser intensity. Our results also show that, impurity size and type of conductivity can influence on plasma time evolution and transmissivity.

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“…Recently, by using a pump-probe beam technique, we studied the dynamics of air breakdown plasma for single pulse and double pulse arrangements [19], [20].…”

Section: Introductionmentioning

confidence: 99%

Optical Opacity of Laser Induced Plasma in Distilled Water with NaCl and TiO2 Nanoparticles Impurities

Mozaffari

Jafarabadi

Mahdieh

2017

IJOP

Self Cite

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“…Recently, many groups have studied the transmission effects of the high energy short pulse laser in the atmosphere, [1][2][3][4][5][6][7][8][9][10][11] which is useful for some technical fields, such as directed energy systems, [12] laser lightning rods, [13] atmospheric laser communication, [14] laser radar, [15] etc.…”

Section: Introductionmentioning

confidence: 99%

Transmission effects of high energy nanosecond lasers in laser-induced air plasma under different pressures

Yin

Wang

et al. 2023

Chinese Phys. B

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When a high energy nanosecond (ns) laser induces breakdown in the air, the plasma density generated in the rarefied atmosphere is much smaller than that at normal pressure. It is associated with a relatively lower absorption coefficient and reduces energy loss of the laser beam at low pressure. In this paper, the general transmission characterizations of a joule level 10 ns 1064 nm focused laser beam are investigated both theoretically and experimentally under different pressures. The evolution of the electron density (n e ), the changes in electron temperature (T e ) and the variation of laser intensity (I) are employed for numerical analyses in the simulation model. For experiments, four optical image transfer systems with focal length (f) of 200 mm are placed in a chamber and employed to focus the laser beam and produce plasmas at the focus. The results suggest that the transmittance increases obviously with the decreasing pressure and the plasma channels on the transmission path can be observed by its self-illumination. The simulation results agree well with the experimental data. The numerical model presents that the maximum n e at the focus can reach 1019 /cm3, which is far below the critical density (n c ). As a result, the laser beam is not completely shielded by the plasmas.

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Time-resolved optical probing of nanosecond laser-induced breakdown plasma in polymethyl methacrylate (PMMA)

2018

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

Cited by 4 publications

References 21 publications

Optical Opacity of Laser Induced Plasma in Distilled Water with NaCl and TiO2 Nanoparticles Impurities

Optical Opacity of Laser Induced Plasma in Distilled Water with NaCl and TiO2 Nanoparticles Impurities

Transmission effects of high energy nanosecond lasers in laser-induced air plasma under different pressures

Time-resolved optical probing of nanosecond laser-induced breakdown plasma in polymethyl methacrylate (PMMA)

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