Simulation of fluence-dependent photocurrent in terahertz photoconductive receivers
Simulation of fluence-dependent photocurrent in terahertz photoconductive receivers
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太赫兹光电导接收器中注量相关光电流的仿真
DOI:
10.1088/0268-1242/27/11/115011
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发表时间:
2012
影响因子:
1.9
通讯作者:
Castro-Camus E
中科院分区:
文献类型:
--
作者:
Castro-Camus E
A semi-classical Monte Carlo simulation of carrier dynamics in photoconductive detectors of terahertz (THz) radiation is presented. We have used this simulation to elucidate the importance of carrier trapping in the operation of photoconductive detectors. Simulations of the detection of single-cycle THz pulses by photoconductive antennas based on GaAs with trap densities between 2× 10 17 and 2× 10 18 cm− 3 are presented. We show that the high frequency (> 1 THz) spectral response of photoconductive devices decreases with increasing excitation fluence. Our simulations reveal that this effect is a direct consequence of the saturation of trapping centres
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DOI:
--
发表时间:
2006
期刊:
影响因子:
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DOI:
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DOI:
--
发表时间:
2011
期刊:
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