Transient Characteristics of Interdigitated GaAs Photoconductive Semiconductor Switch at 1-kHz Excitation
Transient Characteristics of Interdigitated GaAs Photoconductive Semiconductor Switch at 1-kHz Excitation
Xu, M.; Liu, X.; Li, M.; Liu, K.; Qu, G.; Wang, V.; Hu, L.; Schneider, H.
To explore the stability of gallium arsenide (GaAs) photoconductive semiconductor switches (PCSSs) with avalanche multiplication mechanism, an interdigitated electrodestructure is presented at 1-kHz excitation by a femtosecond laser. The influences of optical excitation and bias electric field on switching characteristics are investigated. The transient current density and the distribution of electric field are demonstrated by the Monte Carlo simulation. The repetitive switching indicates that the avalanche multiplication mechanism could persist stably at 1-kHz repetition rate operation with this specific electrode structure.
Keywords: Gallium arsenide; GaAs; high gain; photoconductive semiconductor switch; avalanche multiplication; repetition rate
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IEEE Electron Device Letters 40(2019)7, 1136-1138
DOI: 10.1109/LED.2019.2916427
ISSN: 0741-3106
Cited 13 times in Scopus
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Permalink: https://www.hzdr.de/publications/Publ-29564