Interactions of optically generated space-charge waves with magnetic fields in semi-insulating InP:Fe single crystals

Петров, М. П.; Bryksin, V. V.; Lemmer, M.; Hilling, B.; Wöhlecke, M.; Imlau, Mirco

doi:10.1103/physrevb.76.033202

Cited by 4 publications

(1 citation statement)

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“…In recent years, this method uncovered several insights to the physics of SCW, for example, the uncommon case of traprecharging waves ͑TRW͒ with a linear dispersion law, 9 the interaction of SCW with magnetic fields, 10,11 and the effects of optical interband excitation. 12 However, these studies were affected by the following systematic limitations: ͑i͒ the oscillating pattern has no distinctive direction of motion, i.e., the sign of the charge carriers participating in SCW formation cannot be determined.…”

Section: Introductionmentioning

confidence: 99%

Space-charge wave excitation by superposition of static and moving interference patterns

et al. 2009

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The optical excitation of space-charge waves ͑SCW͒ has been realized experimentally by superposition of static and moving light interference patterns with Bi 12 GeO 20 as an example. A clear resonance behavior of the ac detected in an external electric circuit, as well as an inverse dispersion law, is verified, and a low frequency signal due to a modulation of the photoconductivity appears. The results are compared to the classical method using an oscillating light pattern for excitation. The optimized method allows for the detection of the charge carriers participating in SCW formation and yields an excitation of higher quality.

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