Simple modeling techniques for analysis of laser beam induced current images

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Abstract
Spatially resolved laser beam induced current measurements yield large volumes of data. We present here a data reduction technique based on simple emulation of the laser beam induced current (LBIC) response expected from a distribution of charge in a medium. A model for the current expected when scanning over a buried charged sheet allows some LBIC data to be reduced to a geometric model for a cracked sample. The results obtained are sufficiently encouraging to indicate that such modeling methods can reduce the often complex LBIC images obtained from HgCdTe material to a digest of geometric and electrical properties.

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