Abstract
Planar metal-semiconductor-metal (MSM) photodetectors are very attractive for many optoelectronic applications, in particular, for optical fiber communication systems, chip-to-chip connections, and optical heterodyne conversion. In this paper a 2D ensemble Monte Carlo particle method is used to simulate the MSM photodetector response. We consider planar MSM photodetectors consisting of a GaAs absorbing layer with a system of Schottky contacts made back-to-back on the above layer. We consider the intrinsic transient response of the MSM photodetector under the influence of a probing ultra-short light pulse generating photoelectrons and photoholes in the GaAs layer.
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