| Ratchet effects induced by terahertz radiation in heterostructures with a lateral periodic potential. | |
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MedLine Citation:
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PMID: 19792776 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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We report on the observation of the Seebeck ratchet effect. The effect is measured in semiconductor heterostructures with a one-dimensional lateral potential excited by terahertz radiation. The photocurrent generation is based on the combined action of a spatially periodic in-plane potential and a spatially modulated light, which gives rise to a modulation of the local temperature. In addition to the polarization-independent current due to the Seebeck ratchet effect, we observe a photon helicity dependent response and propose a microscopic mechanism to interpret the experimental findings. |
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Authors:
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P Olbrich; E L Ivchenko; R Ravash; T Feil; S D Danilov; J Allerdings; D Weiss; D Schuh; W Wegscheider; S D Ganichev |
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Publication Detail:
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Type: Journal Article Date: 2009-08-28 |
Journal Detail:
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Title: Physical review letters Volume: 103 ISSN: 0031-9007 ISO Abbreviation: Phys. Rev. Lett. Publication Date: 2009 Aug |
Date Detail:
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Created Date: 2009-10-01 Completed Date: 2009-10-07 Revised Date: 2010-04-14 |
Medline Journal Info:
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Nlm Unique ID: 0401141 Medline TA: Phys Rev Lett Country: United States |
Other Details:
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Languages: eng Pagination: 090603 Citation Subset: - |
Affiliation:
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Terahertz Center, University of Regensburg, 93040 Regensburg, Germany. |
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Descriptor/Qualifier:
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Erratum In:
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Phys Rev Lett. 2009 Nov 6;103(19):199901 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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