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