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Title: Plasma behind the front of a damage wave and the mechanism of laser-induced production of a chain of caverns in an optical fibre

Abstract

The properties of the plasma behind the front of a damage wave generated by laser radiation in an optical fibre are considered. A plasma with a low degree of ionisation but a relatively high electron density is shown to emerge. However, the high absorption coefficient of laser radiation at a temperature of the order of 2000 K cannot be attributed to the presence of bremsstrahlung. The production of a chain of uniformly spaced caverns during the laser damage of the optical fibre is qualitatively explained. It is shown that this effect cannot be explained by the capillary Rayleigh instability because of the high viscosity of the glass. It is found that the fibre core deformation by a high pressure leads to an increase of the fibre volume sufficient to account for the emergence of the caverns after cooling. It is assumed that the periodicity of caverns is caused by the instability of a new type. A high-density double electrical-charge layer is produced at the plasma-liquid interface. Due to the repulsion of similar charges, the surface tends to increase, resulting in the instability development responsible for the production of the chain of caverns. (interaction of laser radiation with matter. laser plasma)

Authors:
 [1]
  1. A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)
Publication Date:
OSTI Identifier:
21470588
Resource Type:
Journal Article
Journal Name:
Quantum Electronics (Woodbury, N.Y.)
Additional Journal Information:
Journal Volume: 34; Journal Issue: 8; Other Information: DOI: 10.1070/QE2004v034n08ABEH002845; Journal ID: ISSN 1063-7818
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION; BREMSSTRAHLUNG; CAPILLARIES; COOLING; DEFORMATION; DENSITY; ELECTRON DENSITY; INSTABILITY; INTERFACES; IONIZATION; LASER RADIATION; LIQUIDS; OPTICAL FIBERS; PLASMA; PRESSURE RANGE MEGA PA 10-100; SURFACES; VISCOSITY; BLOOD VESSELS; BODY; CARDIOVASCULAR SYSTEM; ELECTROMAGNETIC RADIATION; FIBERS; FLUIDS; ORGANS; PHYSICAL PROPERTIES; PRESSURE RANGE; PRESSURE RANGE MEGA PA; RADIATIONS; SORPTION

Citation Formats

Yakovlenko, Sergei I. Plasma behind the front of a damage wave and the mechanism of laser-induced production of a chain of caverns in an optical fibre. United States: N. p., 2004. Web. doi:10.1070/QE2004V034N08ABEH002845.
Yakovlenko, Sergei I. Plasma behind the front of a damage wave and the mechanism of laser-induced production of a chain of caverns in an optical fibre. United States. https://doi.org/10.1070/QE2004V034N08ABEH002845
Yakovlenko, Sergei I. 2004. "Plasma behind the front of a damage wave and the mechanism of laser-induced production of a chain of caverns in an optical fibre". United States. https://doi.org/10.1070/QE2004V034N08ABEH002845.
@article{osti_21470588,
title = {Plasma behind the front of a damage wave and the mechanism of laser-induced production of a chain of caverns in an optical fibre},
author = {Yakovlenko, Sergei I},
abstractNote = {The properties of the plasma behind the front of a damage wave generated by laser radiation in an optical fibre are considered. A plasma with a low degree of ionisation but a relatively high electron density is shown to emerge. However, the high absorption coefficient of laser radiation at a temperature of the order of 2000 K cannot be attributed to the presence of bremsstrahlung. The production of a chain of uniformly spaced caverns during the laser damage of the optical fibre is qualitatively explained. It is shown that this effect cannot be explained by the capillary Rayleigh instability because of the high viscosity of the glass. It is found that the fibre core deformation by a high pressure leads to an increase of the fibre volume sufficient to account for the emergence of the caverns after cooling. It is assumed that the periodicity of caverns is caused by the instability of a new type. A high-density double electrical-charge layer is produced at the plasma-liquid interface. Due to the repulsion of similar charges, the surface tends to increase, resulting in the instability development responsible for the production of the chain of caverns. (interaction of laser radiation with matter. laser plasma)},
doi = {10.1070/QE2004V034N08ABEH002845},
url = {https://www.osti.gov/biblio/21470588}, journal = {Quantum Electronics (Woodbury, N.Y.)},
issn = {1063-7818},
number = 8,
volume = 34,
place = {United States},
year = {Tue Aug 31 00:00:00 EDT 2004},
month = {Tue Aug 31 00:00:00 EDT 2004}
}