Fine tenability of fs laser induced pressure wave inside glasse

Abstract

In this paper, we will present the time-resolved observation of pressure wave generation in fs laser processing inside a silica glass and show how the intensity of the pressure wave depends on the pulse duration. We found that the amplitude of the pressure wave increases more sensitively as the excitation energy increases when the pulse duration is longer. This means that the amplitude of the pressure wave can be tuned more precisely with a laser of shorter pulse duration.