TY - JOUR
AU - Liu, Jinsong
AB - Abstract The field screening effects in small-size GaAs photoconductive (PC) antenna are investigated via the well-known pump and probe terahertz (THz) generation technique. The peak amplitude of the THz pulses excited by the probe laser pulse as a function of the pump-probe time delay was measured. An equivalent-circuit model was used to simulate the experimental data. Based on the good agreement between the results of simulation and experiment, the time behavior of the radiation and space-charge fields was simulated. The results show that the space-charge screening dominantly determines the device response in the whole time, while the radiation filed screening plays a key role in initial time which strongly affects the peak THz field. The parameter analysis was performed, which may be valuable on the optimum design for the antenna as a THz emitter.
TI - Time behavior of field screening effects in small-size GaAs photoconductive terahertz antenna
JF - "Frontiers of Optoelectronics"
DO - 10.1007/s12200-015-0488-9
DA - 2015-03-01
UR - https://www.deepdyve.com/lp/springer-journals/time-behavior-of-field-screening-effects-in-small-size-gaas-mc0TA9mnHJ
SP - 98
EP - 103
VL - 8
IS - 1
DP - DeepDyve
ER -