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Experimental research and modeling of the process of generation of an optoacoustic signal

Abstract

Experimental research and modeling of the process of generation of an optoacoustic signal

Kravchuk D.A.

Incoming article date: 20.06.2017

The optical-acoustic effect, which leads to the excitation of acoustic waves upon absorption of a variable light flux, is considered. A model is proposed for calculating the acoustic field generated by a laser study in a liquid when it hits a spherical object in savagery. Spherical objects can serve as special nanomaterials added to the liquid. The results of an experiment on the excitation of an optoacoustic signal in a liquid by means of a laser for laser flow diagnostics are presented. Since the laser beam is characterized by a set of parameters: power, polarization, wavelength, frequency, phase and direction of propagation, then by changing these parameters one can judge the processes occurring in the investigated stream.

Keywords: optoacoustics, nanofibres, optoacoustic waves, biofluids, virtual instrument, signal spectrum, spherical reflectors