Generation of acoustic waves at dielectric interface by microwave pulses

Acoustic wave generation by pulsed microwaves have been cited as a mechanism for microwave hearing. The authors reformulate the problem to include electrostrictive as well as the thermoacoustic stress and show that it may play an important role in the generation of pressure waves by microwave pulses in dielectrics with thermal or dielectric discontinuities. They also show that, in the first-order linear approximation, the effect of the electrostrictive force on the acoustic velocity is negligible