A compact analytic solution describing optoacoustic phenomenon in absorbing fluid

TL;DR

This paper presents a compact, closed-form analytical solution for the optoacoustic effect in absorbing fluids induced by Q-switched lasers, useful for various optoacoustic applications.

Contribution

It introduces a novel analytic solution assuming spherical symmetry, serving as a kernel for complex optoacoustic problem modeling.

Findings

Provides a closed-form Green's function solution

Applicable to optoacoustic spectroscopy and photothermal problems

Facilitates more accurate modeling of laser-induced acoustic phenomena

Abstract

Derivation of an analytic, closed-form solution for Q-switched laser induced optoacoustic phenomenon in absorbing fluid media is presented. The solution assumes spherical symmetry as well for the forcing function, which represents heat deposition from Q-switched lasers. The Greens solution provided is a suitable kernel to generate more complex solutions arising in optoacoustics, optoacoustic spectroscopy, photoacoustic and photothermal problems.