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Optica Publishing Group
  • Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference
  • Technical Digest (Optica Publishing Group, 2003),
  • paper CTuG4

Anomalous nonlinear photoconductivity in a GaN-based heterostructure

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Abstract

The nonlinear (3rd to 4thorder) as well as linear photoconductivity in a GaN/InGaN heterostructure is investigated using femtosecond pulses in the IR and near-UV. The non-integer intensity dependence is explained by a model including defect density fluctuations and nonlinear carrier transport phenomena.

© 2003 Optical Society of America

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