Abstract

This paper discusses the characteristics of the optoacoustic response to the laser ablation of a steel target under a thin layer of liquid by the radiation of a pulsed fiber laser in the range of power densities 10<sup>7</sup>–2×10<sup>8</sup>   W/cm<sup>2</sup>. The dependence of the intensity of the principal peak (5.6 kHz) of the Fourier spectrum of the optoacoustic signal on the power density of the laser radiation is determined. It is established that the character of the growth of the acoustic signal amplitude substantially depends on the properties and conditions of the appearance of a near-surface plasma.

© 2014 Optical Society of America

PDF Article

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription