Quantum interference control of femtosecond, microA current bursts in single GaAs nanowires

A phase-stable superposition of femtosecond pulses from a compact erbium-doped fiber source and their second harmonic is shown to induce ultrashort approximately microA current bursts in single unbiased GaAs nanowires. Current injection relies on a quantum interference of one- and two-photon absorpt...

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Bibliographic Details
Published in:	Nano letters Vol. 10; no. 5; pp. 1799 - 1804
Main Authors:	Ruppert, C, Thunich, S, Abstreiter, G, Fontcuberta i Morral, A, Holleitner, A W, Betz, M
Format:	Journal Article
Language:	English
Published:	United States 12-05-2010
Subjects:	Arsenicals - chemistry Arsenicals - radiation effects Electronics - instrumentation Equipment Design Equipment Failure Analysis Gallium - chemistry Gallium - radiation effects Light Nanostructures - chemistry Nanostructures - ultrastructure Nanotechnology - instrumentation Optical Devices Quantum Theory Refractometry - instrumentation Semiconductors
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Summary:	A phase-stable superposition of femtosecond pulses from a compact erbium-doped fiber source and their second harmonic is shown to induce ultrashort approximately microA current bursts in single unbiased GaAs nanowires. Current injection relies on a quantum interference of one- and two-photon absorption pathways. The vector direction of the current is solely dictated by the polarization and relative phase of the harmonically related light components while its power dependence is consistent with a third order optical nonlinearity.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1530-6992
DOI:	10.1021/nl1004898