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

被引：0

作者：

Salikhov, T. Kh. ^{[1
]}

Melikkhudzha, N. ^{[1
]}

Makhmalatif, A. ^{[1
]}

机构：

[1] Tajik State Natl Univ, Dushanbe 734025, Tajikistan

来源：

TECHNICAL PHYSICS LETTERS | 2019年 / 45卷 / 05期

关键词：

ABSORPTION; PARAMETERS;

D O I：

10.1134/S1063785019050146

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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 (-1), when a free path of photons is less than the thermal diffusion length, and is proportional to (-3/2) in the opposite case.

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页码：450 / 452

页数：3

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