High power non-linear magnetophotoconductivity in n-GaAs using the UCSB free electron laser

URN to cite this document:: urn:nbn:de:bvb:355-epub-184463

Kaminski, J. P. ; Spector, J. ; Prettl, Wilhelm ; Weispfenning, M.

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Date of publication of this fulltext: 26 Nov 2010 08:49

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Abstract

The kinetics of electrons bound to shallow donor impurities in n-GaAs was investigated by saturation spectroscopy using the University of California at Santa Barbara free electron laser. The resonant photothermal conductivity from 1s–2p+ transitions was measured at intensities greatly exceeding previous studies. Saturation of bound-to-free photoionization transitions was measured from 0 to 4 ...