Abnormal response of PV-type HgCdTe detector under intense laser irradiation

he yuan-xing; jiang hou-man

Volume 20 Issue 08

Aug. 2008

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Article Navigation > High Power Laser and Particle Beams > 2008 > 20(08): 0-

ding wei, zhang yu, liang chang-hong. Characteristics of Gaussian beam propagation through double negative media slab[J]. High Power Laser and Particle Beams, 2007, 19.

Citation:

he yuan-xing, jiang hou-man. Abnormal response of PV-type HgCdTe detector under intense laser irradiation[J]. High Power Laser and Particle Beams, 2008, 20.

ding wei, zhang yu, liang chang-hong. Characteristics of Gaussian beam propagation through double negative media slab[J]. High Power Laser and Particle Beams, 2007, 19.

Citation:

he yuan-xing, jiang hou-man. Abnormal response of PV-type HgCdTe detector under intense laser irradiation[J]. High Power Laser and Particle Beams, 2008, 20.

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Abnormal response of PV-type HgCdTe detector under intense laser irradiation

1.
College of Optoelectric Science and Engineering,National University of Defense Technology,Changsha 410073,china

Publish Date: 2008-08-15

Abstract

Abstract

A model based on the open-circuit voltage formula of the PV-type detector, which is derived from the driftdiffusion model under the steady-condition approximation, is used to calculate the responses of PV-type HgCdTe detector under laser irradiation, in which the temperature change of detector is taken in to account. The calculation results agree well with the experiment results under weak laser irradiation; when the laser intensity is higher, the calculation results show notable deviation from the experiment results, in which the output of detector decrease rapidly when the laser begins to irradiate and increase rapidly when the laser stops to irradiate. The results suggest that when the laser intensity is higher, the hot carrier effects can’t be negligible and the model used here is n
- pv-type hgcdte detector,
- hot carrier effects,
- response,
- turn-on voltage,
- drift-diffusion model,
- laser irradiation

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