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  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1994),
  • paper CThI20

Monte-Carlo investigation of subpicosecond pulse generation by nonuniform gap illumination

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Abstract

Recent experiments have shown that subpicosecond electrical pulses may be generated by illuminating the edge of a photoconductive switch.1,2 Based on the experimental results, we conjectured that the mechanism of this pulse-generation scheme is due to the depletion of electrical field in the illuminated area, which generates a subpicosecond pulse that propagates from the switch in the form of a transient displacement current.3 In this article, we examine the carrier dynamics of the experimental configuration using a self-consistent ensemble Monte-Carlo (EMC) approach and demonstrate this mechanism from first principle. Our EMC program is one-dimensional and includes simultaneous solution of electric field at each incremental time step using a Poisson solver.

© 1994 Optical Society of America

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