Temperature of optical discharge under action of laser radiation in silica-based fibers

2005 ◽  
Author(s):  
E.M. Dianov
Keyword(s):  
Laser Radiation ◽  
Optical Discharge

Diagnostics of an optical discharge plasma sustained in atmospheric air by neodymium laser radiation

1986 ◽  
Vol 16 (9) ◽  
pp. 1231-1236 ◽  
Author(s):  
Igor' A Bufetov ◽  
V V Zherdienko ◽  
V B Fedorov ◽  
V K Fomin
Keyword(s):  
Laser Radiation ◽  
Discharge Plasma ◽  
Neodymium Laser ◽  
Optical Discharge ◽  
Atmospheric Air

scholarly journals Laser-supported detonation in a transverse magnetic field: A qualitative theory and direct conversion of laser radiation energy into electricity

1996 ◽  
Vol 14 (3) ◽  
pp. 511-518
Author(s):  
Yuri B. Alferov ◽  
Alexander P. Budnik
Keyword(s):  
Magnetic Field ◽  
Laser Radiation ◽  
Transverse Magnetic Field ◽  
Radiation Energy ◽  
Direct Conversion ◽  
Transverse Magnetic ◽  
Space Vehicles ◽  
Laser Radiation Energy ◽  
Optical Discharge ◽  
The Stability

This paper presents the results of a theoretical investigation of a laser-supported detonation wave (LDW) in a transverse magnetic field. A 1D problem of a steady-state wavefront structure is considered. The magnetic structure of the LDW is determined. Specific attention is focused on the stability conditions of a shock wavefront. The value of the induced (downstream) electric field strength is obtained from numerical calculations. The possibility of direct conversion of laser radiation energy into electricity in optical discharge plasma moving across an external magnetic field is considered. Such a device could be used in the energy supply systems of space vehicles.

Transmission of laser radiation by an optical discharge plasma and the channel discharge model

1985 ◽  
Vol 15 (9) ◽  
pp. 1221-1227
Author(s):  
E V Dan'shchikov ◽  
V A Dymshakov ◽  
F V Lebedev ◽  
A V Ryazanov
Keyword(s):  
Laser Radiation ◽  
Discharge Plasma ◽  
Optical Discharge ◽  
Discharge Model

Optical discharge in silica-based fibers: high-speed propagation under kW-range laser radiation

2006 ◽  
Author(s):  
A. A. Frolov ◽  
I. A. Bufetov ◽  
V. P. Efremov ◽  
M. Y. Schelev ◽  
V. I. Lozovoy ◽  
...  
Keyword(s):  
Laser Radiation ◽  
High Speed ◽  
Optical Discharge ◽  
Speed Propagation

Interaction of near-IR laser radiation with plasma of a continuous optical discharge

2016 ◽  
Vol 42 (1) ◽  
pp. 68-73 ◽  
Author(s):  
V. P. Zimakov ◽  
V. A. Kuznetsov ◽  
N. G. Solovyov ◽  
A. N. Shemyakin ◽  
A. O. Shilov ◽  
...  
Keyword(s):  
Laser Radiation ◽  
Optical Discharge ◽  
Near Ir ◽  
Ir Laser ◽  
Continuous Optical Discharge

Refraction of laser radiation by an optical discharge plasma

1985 ◽  
Vol 15 (12) ◽  
pp. 1633-1635 ◽  
Author(s):  
A F Glova ◽  
V F Lebedev ◽  
V P Yartsev
Keyword(s):  
Laser Radiation ◽  
Discharge Plasma ◽  
Optical Discharge

scholarly journals Влияние внешнего электрического поля на оптический разряд в скоростном потоке

2022 ◽  
Vol 92 (2) ◽  
pp. 209
Author(s):  
В.Н. Зудов ◽  
А.В. Тупикин
Keyword(s):  
Laser Radiation ◽  
Electric Field ◽  
Electric Discharge ◽  
Discharge Plasma ◽  
Optical Breakdown ◽  
Weak Electric Field ◽  
High Temperature Region ◽  
Breakdown Threshold ◽  
Optical Discharge ◽  
Field Lines

The influence of an electric field on the plasma of an optical discharge in subsonic and supersonic air flows has been studied experimentally. The presence of a weak electric field practically does not affect the size of the plasma formation, but, regardless of the configuration of the field lines and the polarity of the applied voltage, it leads to a decrease in the probability of optical breakdown. The experiment has shown that the plasma created by focused laser radiation is very sensitive to the presence of an electric field. When a voltage exceeding 22 kV was applied to the ring electrodes, powerful quasi-stationary streamers were formed in the flow. The presence of an optical discharge plasma made it possible to create an electric discharge in fields with an intensity below the breakdown threshold of the medium. The effect of quenching and the processes of development of an optical discharge were studied depending on the speed and characteristics of the electric field. Quenching of the optical discharge was observed when a voltage of 22 kV and higher was applied. Despite the preservation of the geometric dimensions of the optical discharge, the high-temperature region in the flow can be increased by using electric streamers. This leads to an increase in the energy supplied to the flow, and thus allows combustion to be initiated and flame stabilized at higher flow rates. Key words: experimental modeling, laser radiation, optical breakdown, electric field, electric discharge, sub- and supersonic air flow.

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