Carrier-Diffusion Wave and Thermal Wave in a Semiconducting Microcantilever Generated by Optical Excitation

Abstract

The carrier-diffusion wave and thermal wave during photothermal process were studied in a three-dimensional semiconducting microcantilever. The green function method was used to obtain the theoretical expressions for carrier density and temperature during optical excitation. The space distribution for carrier density and temperature were given graphically for different heat sources.