A New Model of the Electron Gas Effect on the Thermoacoustics of Conductors under Laser Irradiation

Research output: Contribution to journalArticleResearchpeer-review

Abstract

A two-component model which accounts for electron gas pressure is proposed for describing the dynamics of thermoelastic and thermoacoustics effects in laser-irradiated conductors. The model medium represents two interpenetrating continua such that interacting particles of both exist at each point of the medium. The electron gas in the model comprises free and bound electrons of which the former obey the laws for perfect metals and the latter obey those that account for electron trapping to localized levels and for electron transitions from level to level, i.e., for jump diffusion and hopping conductivity. Unlike the classical model of thermoelasticity, the proposed model is the first to show that the electron gas pressure depends strongly on the temperature difference between the electron gas and the conductor lattice and on the change in the density of free electrons as localized species become free by the Mott mechanism. The duration of acoustic pulses in the conductor lattice is essentially dependent on the time of laser irradiation and on how long the gas and the lattice differ in temperature, with the longest acoustic pulse falling on a certain localized electron density. The model data are compared with experiments.

Original languageEnglish
Pages (from-to)13-17
Number of pages5
JournalPhysical Mesomechanics
Volume22
Issue number1
DOIs
StatePublished - Jan 2019

Keywords

  • thermoelasticity
  • thermoacoustics
  • two-component model
  • dynamic behavior
  • laser irradiation
  • conductors
  • electron gas
  • ACOUSTIC-WAVES

Cite this

@article{a8df562244294cbb9dc780cafd2dedef,
title = "A New Model of the Electron Gas Effect on the Thermoacoustics of Conductors under Laser Irradiation",
abstract = "A two-component model which accounts for electron gas pressure is proposed for describing the dynamics of thermoelastic and thermoacoustics effects in laser-irradiated conductors. The model medium represents two interpenetrating continua such that interacting particles of both exist at each point of the medium. The electron gas in the model comprises free and bound electrons of which the former obey the laws for perfect metals and the latter obey those that account for electron trapping to localized levels and for electron transitions from level to level, i.e., for jump diffusion and hopping conductivity. Unlike the classical model of thermoelasticity, the proposed model is the first to show that the electron gas pressure depends strongly on the temperature difference between the electron gas and the conductor lattice and on the change in the density of free electrons as localized species become free by the Mott mechanism. The duration of acoustic pulses in the conductor lattice is essentially dependent on the time of laser irradiation and on how long the gas and the lattice differ in temperature, with the longest acoustic pulse falling on a certain localized electron density. The model data are compared with experiments.",
keywords = "thermoelasticity, thermoacoustics, two-component model, dynamic behavior, laser irradiation, conductors, electron gas, ACOUSTIC-WAVES",
author = "Muratikov, {K. L.} and Indeitsev, {D. A.} and Vavilov, {D. S.} and Semenov, {B. N.} and Морозов, {Никита Федорович}",
year = "2019",
month = "1",
doi = "10.1134/S1029959919010041",
language = "Английский",
volume = "22",
pages = "13--17",
journal = "Physical Mesomechanics",
issn = "1029-9599",
publisher = "Springer",
number = "1",

}

A New Model of the Electron Gas Effect on the Thermoacoustics of Conductors under Laser Irradiation. / Muratikov, K. L.; Indeitsev, D. A.; Vavilov, D. S.; Semenov, B. N.; Морозов, Никита Федорович.

In: Physical Mesomechanics, Vol. 22, No. 1, 01.2019, p. 13-17.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - A New Model of the Electron Gas Effect on the Thermoacoustics of Conductors under Laser Irradiation

AU - Muratikov, K. L.

AU - Indeitsev, D. A.

AU - Vavilov, D. S.

AU - Semenov, B. N.

AU - Морозов, Никита Федорович

PY - 2019/1

Y1 - 2019/1

N2 - A two-component model which accounts for electron gas pressure is proposed for describing the dynamics of thermoelastic and thermoacoustics effects in laser-irradiated conductors. The model medium represents two interpenetrating continua such that interacting particles of both exist at each point of the medium. The electron gas in the model comprises free and bound electrons of which the former obey the laws for perfect metals and the latter obey those that account for electron trapping to localized levels and for electron transitions from level to level, i.e., for jump diffusion and hopping conductivity. Unlike the classical model of thermoelasticity, the proposed model is the first to show that the electron gas pressure depends strongly on the temperature difference between the electron gas and the conductor lattice and on the change in the density of free electrons as localized species become free by the Mott mechanism. The duration of acoustic pulses in the conductor lattice is essentially dependent on the time of laser irradiation and on how long the gas and the lattice differ in temperature, with the longest acoustic pulse falling on a certain localized electron density. The model data are compared with experiments.

AB - A two-component model which accounts for electron gas pressure is proposed for describing the dynamics of thermoelastic and thermoacoustics effects in laser-irradiated conductors. The model medium represents two interpenetrating continua such that interacting particles of both exist at each point of the medium. The electron gas in the model comprises free and bound electrons of which the former obey the laws for perfect metals and the latter obey those that account for electron trapping to localized levels and for electron transitions from level to level, i.e., for jump diffusion and hopping conductivity. Unlike the classical model of thermoelasticity, the proposed model is the first to show that the electron gas pressure depends strongly on the temperature difference between the electron gas and the conductor lattice and on the change in the density of free electrons as localized species become free by the Mott mechanism. The duration of acoustic pulses in the conductor lattice is essentially dependent on the time of laser irradiation and on how long the gas and the lattice differ in temperature, with the longest acoustic pulse falling on a certain localized electron density. The model data are compared with experiments.

KW - thermoelasticity

KW - thermoacoustics

KW - two-component model

KW - dynamic behavior

KW - laser irradiation

KW - conductors

KW - electron gas

KW - ACOUSTIC-WAVES

U2 - 10.1134/S1029959919010041

DO - 10.1134/S1029959919010041

M3 - статья

VL - 22

SP - 13

EP - 17

JO - Physical Mesomechanics

JF - Physical Mesomechanics

SN - 1029-9599

IS - 1

ER -