| Imaging by a sub-wavelength metallic lens with large field of view. | |
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MedLine Citation:
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PMID: 18542339 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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The characteristics of the phase retardations and the invariability against the incident angles are investigated when light enters the rectangular holes with different sizes perforated on metallic film. A kind of metallic structure with a great potential in imaging is brought forward. The finite difference time domain (FDTD) method and the Rayleigh-Sommerfeld diffraction integrals are used to testify the imaging ability at different incident angles by examining the electric field on focal plane. The calculation results indicate that a quite large view of field lens can be achieved by increasing the number of the holes per unit area with the mentioned structure. A metallic structured lens with a 280 microm aperture and 240 microm focal length is designed and the view angle range of +/-15 degrees can be achieved. |
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Authors:
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Shaoyun Yin; Chongxi Zhou; Xiangang Luo; Chunlei Du |
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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: 16 ISSN: 1094-4087 ISO Abbreviation: Opt Express Publication Date: 2008 Feb |
Date Detail:
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Created Date: 2008-06-10 Completed Date: 2008-07-23 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: 2578-83 Citation Subset: - |
Affiliation:
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State Key Laboratory of Optical Technologies for Microfabrication, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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