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Title: On the Formation Mechanism of Interference Rings in the Ablation Area on the Condensed Medium Surface under Irradiation with Femtosecond Laser Pulses

Abstract

The dynamics of Newton interference rings appearing in the ablation area on the surface of various condensed media under irradiation with femtosecond laser pulses is analyzed (according to published data on fs ablation). The data on the refractive index evolution in the expanding material cloud from the metal, semiconductor, and dielectric surface, obtained by interference pattern processing. The mechanism of the concentration of the energy absorbed by a medium from the laser beam in the thin layer under the irradiated sample surface is considered. The appearance of the inner layer with increased energy release explains why the ablation process from the metal, semiconductor, and dielectric surface, despite the differences in their compositions and radiation absorption mechanisms, occurs similarly, i.e., with the formation of a thin shell at the outer ablation cloud boundary, which consists of a condensed medium reflecting radiation and, together with the target surface, forms a structure necessary for interference formation.

Authors:
;  [1]
  1. Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation)
Publication Date:
OSTI Identifier:
22771429
Resource Type:
Journal Article
Journal Name:
Physics of the Solid State
Additional Journal Information:
Journal Volume: 60; Journal Issue: 2; Other Information: Copyright (c) 2018 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7834
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABLATION; ABSORPTION; BEAMS; CONCENTRATION RATIO; DIELECTRIC MATERIALS; INTERFERENCE; IRRADIATION; LASER RADIATION; LAYERS; METALS; PULSES; REFRACTIVE INDEX; SEMICONDUCTOR MATERIALS; SURFACES; THIN FILMS

Citation Formats

Bykovskii, N. E., E-mail: nbykovsky@sci.lebedev.ru, and Senatskii, Yu. V.. On the Formation Mechanism of Interference Rings in the Ablation Area on the Condensed Medium Surface under Irradiation with Femtosecond Laser Pulses. United States: N. p., 2018. Web. doi:10.1134/S1063783418020087.
Bykovskii, N. E., E-mail: nbykovsky@sci.lebedev.ru, & Senatskii, Yu. V.. On the Formation Mechanism of Interference Rings in the Ablation Area on the Condensed Medium Surface under Irradiation with Femtosecond Laser Pulses. United States. doi:10.1134/S1063783418020087.
Bykovskii, N. E., E-mail: nbykovsky@sci.lebedev.ru, and Senatskii, Yu. V.. Thu . "On the Formation Mechanism of Interference Rings in the Ablation Area on the Condensed Medium Surface under Irradiation with Femtosecond Laser Pulses". United States. doi:10.1134/S1063783418020087.
@article{osti_22771429,
title = {On the Formation Mechanism of Interference Rings in the Ablation Area on the Condensed Medium Surface under Irradiation with Femtosecond Laser Pulses},
author = {Bykovskii, N. E., E-mail: nbykovsky@sci.lebedev.ru and Senatskii, Yu. V.},
abstractNote = {The dynamics of Newton interference rings appearing in the ablation area on the surface of various condensed media under irradiation with femtosecond laser pulses is analyzed (according to published data on fs ablation). The data on the refractive index evolution in the expanding material cloud from the metal, semiconductor, and dielectric surface, obtained by interference pattern processing. The mechanism of the concentration of the energy absorbed by a medium from the laser beam in the thin layer under the irradiated sample surface is considered. The appearance of the inner layer with increased energy release explains why the ablation process from the metal, semiconductor, and dielectric surface, despite the differences in their compositions and radiation absorption mechanisms, occurs similarly, i.e., with the formation of a thin shell at the outer ablation cloud boundary, which consists of a condensed medium reflecting radiation and, together with the target surface, forms a structure necessary for interference formation.},
doi = {10.1134/S1063783418020087},
journal = {Physics of the Solid State},
issn = {1063-7834},
number = 2,
volume = 60,
place = {United States},
year = {2018},
month = {2}
}