Terahertz radiation from semiconductor surfaces

Abstract

In this chapter, terahertz radiation from semiconductor surfaces by excitation of femtosecond laser pulses is discussed with special attention, paid to the influence of lattice vibrations and plasma oscillations in semiconductors. The effect of dielectric dispersion near the optical-phonon resonance, the coupling of the THz electrical transient with longitudinal optical phonons and semiconductor plasmons is considered. © Springer-Verlag Berlin Heidelberg 2005.