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Technical Physics Letters

, Volume 45, Issue 5, pp 450–452 | Cite as

Generation of a Photoacoustic Signal in Two-Layer Transparent Samples on an Absorbing Substrate

  • T. Kh. SalikhovEmail author
  • N. Melikkhudzha
  • A. Makhmalatif
Article

Abstract

A theory of generation of a photoacoustic signal in a two-layer transparent sample on an absorbing substrate to a buffer gas of a photoacoustic cell has been developed. We have shown that the frequency dependence of the photoacoustic signal amplitude excited in the absorbing substrate obeys the law ∝ ω–1, when a free path of photons is less than the thermal diffusion length, and is proportional to ω–3/2 in the opposite case.

Notes

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • T. Kh. Salikhov
    • 1
    Email author
  • N. Melikkhudzha
    • 1
  • A. Makhmalatif
    • 1
  1. 1.Tajik State National UniversityDushanbeTajikistan

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