| Focusing of a femtosecond vortex light pulse through a high numerical aperture objective. | |
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MedLine Citation:
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PMID: 20588936 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We investigate the focusing properties of a femtosecond vortex light pulse focused by a high numerical aperture objective. By using the Richards-Wolf vectorial diffraction method, the intensity distribution, the velocity variation and the orbital angular momentum near the focus are studied in great detail. We have discovered that the femtosecond vortex light pulse can travel at various speeds, that is, slower or faster than light with a tight focusing system. Moreover, we have found that the numerical aperture of the focusing objective and the duration of the vortex light pulse will influence the orbital angular momentum distribution in the focused field. |
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Authors:
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Baosuan Chen; Jixiong Pu; Olga Korotkova |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Optics express Volume: 18 ISSN: 1094-4087 ISO Abbreviation: Opt Express Publication Date: 2010 May |
Date Detail:
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Created Date: 2010-06-30 Completed Date: 2010-11-22 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101137103 Medline TA: Opt Express Country: United States |
Other Details:
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Languages: eng Pagination: 10822-7 Citation Subset: IM |
Copyright Information:
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(c) 2010 Optical Society of America. |
Affiliation:
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College of Information Science and Engineering, Huaqiao University, Quanzhou, Fujian 362021, China. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Computer-Aided Design Equipment Design Equipment Failure Analysis Lenses* Light Refractometry / instrumentation*, methods* Scattering, Radiation |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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