Monte Carlo simulation of THz-pulse generation from semiconductor surface

Abstract:

An ensemble Monte Carlo simulator, which is developed with the object-oriented programming language C++ and unified modeling language UML, has been introduced. Using this simulator, we have simulated the local fields on the GaAs surfaces and the temporal waveforms of THz pulses when the GaAs surface is illuminated by intense sub-picosecond optical pulses (the corresponding photogenerated carrier density 1019 cm-3) and biased in a high applied external electrical field (l00 kV/cm). The power spectra show that the higher bias electric field may generate the higher power output within the range of 6 THz, and beyond this range the effect of high bias fields is not obvious.

Año de publicación:

2004

Keywords:

• THz radiation
• Monte Carlo method
• GAAS
• UML
• C++

Fuente:

scopus