| Electronic transitions in quantum dots and rings induced by inhomogeneous off-centered light beams. | |
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MedLine Citation:
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PMID: 21406810 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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We theoretically investigate the effect of inhomogeneous light beams with (twisted light) and without (plane-wave light) orbital angular momentum on semiconductor-based nanostructures, when the symmetry axes of the beam and the nanostructure are displaced parallel to each other. Exact analytical results are obtained by expanding the off-centered light field in terms of the appropriate light modes centered around the nanostructure. We demonstrate how electronic transitions involving the transfer of different amounts of orbital angular momentum are switched on and off as a function of the separation between the axes of the beam and the system. In particular, we show that even off-centered plane-wave beams induce transitions such that the angular momenta of the initial and final states are different. |
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Authors:
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G F Quinteiro; A O Lucero; P I Tamborenea |
Publication Detail:
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Type: Journal Article Date: 2010-11-30 |
Journal Detail:
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Title: Journal of physics. Condensed matter : an Institute of Physics journal Volume: 22 ISSN: 0953-8984 ISO Abbreviation: J Phys Condens Matter Publication Date: 2010 Dec |
Date Detail:
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Created Date: 2011-03-16 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101165248 Medline TA: J Phys Condens Matter Country: England |
Other Details:
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Languages: eng Pagination: 505802 Citation Subset: IM |
Affiliation:
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Departamento de Física and IFIBA, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón I, 1428 Ciudad de Buenos Aires, Argentina. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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