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


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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.

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T. Salikhov

Tajik State National University

编辑信件的主要联系方式.
Email: tsalikhov@mail.ru
塔吉克斯坦, Dushanbe, 734025

N. Melikkhudzha

Tajik State National University

Email: tsalikhov@mail.ru
塔吉克斯坦, Dushanbe, 734025

A. Makhmalatif

Tajik State National University

Email: tsalikhov@mail.ru
塔吉克斯坦, Dushanbe, 734025

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