| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 749800 | Solid-State Electronics | 2006 | 8 Pages |
Abstract
We study the transport properties of a GaAs-based semiconductor under local optical excitation via direct numerical simulation. The simulation results propose a hypothesis which describes the possibility to control the high-field domain in terms of tunable modulations of the doping profile and the length of the notch region. This hypothesis can be verified, both quantitative and qualitative agreement, via principal-component analysis. Besides, higher harmonic modes embedded in the high-field domain also can be automatically extracted from principal-component analysis. This study might be useful to identify the “effective” length and shape of the cathode notch and to restore the doping concentration in semiconductor devices.
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Authors
Yuo-Hsien Shiau,