Research on the Characteristics of Optoacoustic Signal Induced by Optical Breakdown

Optical breakdown is a mechanism of Laser-generated sound effect, based on the theory of optical breakdown mechanism in this paper, Characteristics of the photo-acoustic signal of the optical breakdown are studied through experimental, including the excitation threshold and the photoacoustic signal, Domain and frequency domain characteristics and characteristics of acoustic signals as a function of laser pulse energy. Study on the relationship between photoacoustic signal and laser source may serve for further study on laser-generated sound and underwater applications.