title: Monte Carlo study of the screening effect of carriers on terahertz radiation from InAs with high excitation intensity.
abstract: The dynamics of terahertz radiation from InAs were investigated by the ensemble Monte Carlo simulation method. Our simulations indicated that under high-intensity excitation it is the ratio of carrier screening to the carrier-polar optical phonon scattering that has an obvious influence in high-frequency components of terahertz pulses; that is, the amplitudes of high-frequency spectra are reduced with increased excitation intensity. Our calculated results qualitatively reproduce recently published experimental data.
authors.affiliation: School of Information Engineering, Guangdong University of Technology, Guangzhou, China. dong_feng_liu@yahoo.com.cn
authors.forename: Dong-Feng
authors.initials: DF
authors.lastname: Liu
authors.forename: Yi-Zhi
authors.initials: YZ
authors.lastname: Tan