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Anomalous polarization dependence of the photon drag and optical rectification fields inn-type gallium phosphide
Authors:P V Gatenby  A K Kar
Institution:(1) Department of Physics, University of Essex, Colchester, Essex, UK
Abstract:The photon drag and optical rectification response fromn-type gallium phosphide containing 2.4×1016 electrons cm–3 has been studied using laser sources at 10.61 and 2.83mgrm. By using different contact configurations, the existence of an additional electric field term in the propagation direction has been deduced. This field is shown to arise from the spatial derivatives of the photon drag and optical rectification field components caused by absorption of the radiation. The importance of this effect in detector design is considered.
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