Please use this identifier to cite or link to this item: https://doi.org/10.1109/3.655021
Title: Numerical investigation of subpicosecond electrical pulse generation by edge illumination of silicon transmission-line gaps
Authors: Zhou, X.
Tang, T.
Seah, L.S.
Yap, C.J.
Choo, S.C. 
Keywords: Numerical analysis
Photoconducting materials/devices
Pulse generation
Transmission line
Ultrafast electronics
Issue Date: Jan-1998
Source: Zhou, X.,Tang, T.,Seah, L.S.,Yap, C.J.,Choo, S.C. (1998-01). Numerical investigation of subpicosecond electrical pulse generation by edge illumination of silicon transmission-line gaps. IEEE Journal of Quantum Electronics 34 (1) : 171-178. ScholarBank@NUS Repository. https://doi.org/10.1109/3.655021
Abstract: The phenomena involved in the subpicosecond electrical pulses generated by edge illumination of a charged coplanar transmission line on silicon substrate are investigated theoretically using a two-dimensional numerical model. The calculated terminal current, which is related to the observed electrical signal, is interpreted as being due to the dielectric relaxation of the space-charge field based on an equivalent circuit model. The pulse dependence (including amplitude, delay, rise time, and shape) on the wavelength of the laser source is investigated in terms of light penetration and the generated photocarriers. The frequency limit of the laser pulse train is determined theoretically for different carrier lifetimes. The simulation results are in qualitative agreement with experimental observations, and the dielectric-relaxation interpretation is consistent with other theories based on the full-wave analysis and the Monte Carlo model.
Source Title: IEEE Journal of Quantum Electronics
URI: http://scholarbank.nus.edu.sg/handle/10635/62505
ISSN: 00189197
DOI: 10.1109/3.655021
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