| Wideband slow light and dispersion control in oblique lattice photonic crystal waveguides. | |
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MedLine Citation:
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PMID: 20389586 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We find that the angle between elementary lattice vectors obviously affects the bandwidth and dispersion of slow light in photonic crystal line-defect waveguides. When the fluctuation of group index is strictly limited in a +/-1% range, the oblique lattice structures with the angle between elementary lattice vectors slightly larger than 60 degrees have broader available bandwidth of flat band slow light than triangular lattice structures. For example, for the angle 66 degrees , there are increases of the available bandwidth from 20% to 68% for several different structures. For the same angle and a +/-10% variation in group velocity, when group indices are nearly constants of 30, 48.5, 80 and 130, their corresponding bandwidths of flat band reach 20 nm, 11.8 nm, 7.3 nm and 3.9 nm around 1550 nm, respectively. The increasing of bandwidth is related to the shift of the anticrossing point towards smaller wave numbers. |
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Authors:
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Feng-Chun Leng; Wen-Yao Liang; Bin Liu; Tong-Biao Wang; He-Zhou Wang |
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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 Mar |
Date Detail:
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Created Date: 2010-04-14 Completed Date: 2010-07-21 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: 5707-12 Citation Subset: IM |
Affiliation:
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State Key Laboratory of Optoelectronic Materials and Technologies, Zhongshan (Sun Yat-Sen) University, Guangzhou 510275, China. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Computer Simulation Crystallization Light Models, Theoretical* Photons Refractometry / instrumentation* Scattering, Radiation |
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