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×÷ÕߣºD. Liu£¬Y.H. Gao¡¢D.S. Gao¡¢X.Y. Han £¬ ±êÌ⣺Photonic band gaps in two-dimensional photonic crystals of core-shell-type dielectric nanorod heterostructures. £¬ ÔÓÖ¾£ºOptics Communications, 285¾í, pp 1988-1992, 2012´º¼¾ лл£¡ |
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letianhan: ½ð±Ò+3, ¡ï¡ï¡ïºÜÓаïÖú 2014-09-09 11:19:43
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Photonic band gaps in two-dimensional photonic crystals of core-shell-type dielectric nanorod heterostructures ×÷Õß:Liu, D (Liu, Dan)[ 1,2 ] ; Gao, YH (Gao, Yihua)[ 1 ] ; Gao, DS (Gao, Dingshan)[ 3 ] ; Han, XY (Han, Xiangyun)[ 1 ] OPTICS COMMUNICATIONS ¾í: 285 ÆÚ: 7 Ò³: 1988-1992 DOI: 10.1016/j.optcom.2011.12.011 ³ö°æÄê: APR 1 2012 ²é¿´ÆÚ¿¯ÐÅÏ¢ ÕªÒª A new type of two-dimensional photonic crystal (PC) called core-shell-type PC composed of a nanorod heterostructure array in a square or triangular lattice such that a dielectric nanorod is covered by a thin interfacial layer is studied. Using the plane-wave numerical expansion method, we study the modification of the band gap spectrum when the nanorods are covered by other material, and reveal that the photonic band gap is considerably enhanced in size for both square and triangular lattice. The effects of structural parameters on the band gaps are also studied. The results show that there exist optimal parameters to open large gaps, and TE (Transverse-electric) band gaps are favored in a triangular lattice. (C) 2011 Elsevier B.V. All rights reserved. ¹Ø¼ü´Ê ×÷Õ߹ؼü´Ê hotonic crystal; Photonic band gap; Core-shell-type nanorod KeyWords Plus:LIGHT-EMITTING-DIODES; SPONTANEOUS EMISSION; P-GAN; LATTICE; EXTRACTION; EFFICIENCY; SURFACE; SLABS ×÷ÕßÐÅÏ¢ ͨѶ×÷ÕßµØÖ·: Gao, YH (ͨѶ×÷Õß) Huazhong Univ Sci & Technol, Sch Phys, WNLO, Wuhan 430074, Peoples R China. µØÖ·: [ 1 ] Huazhong Univ Sci & Technol, Sch Phys, WNLO, Wuhan 430074, Peoples R China [ 2 ] Hubei Univ Educ, Dept Phys & Elect, Wuhan 430205, Peoples R China [ 3 ] Huazhong Univ Sci & Technol, Coll Optoelect Sci & Engn, WNLO, Wuhan 430074, Peoples R China µç×ÓÓʼþµØÖ·:gaoyihua@mail.hust.edu.cn |
4Â¥2014-09-09 00:38:43
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³ö°æÉÌ ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS Àà±ð / ·ÖÀà Ñо¿·½Ïò:Optics Web of Science Àà±ð:Optics ÎÄÏ×ÐÅÏ¢ ÎÄÏ×ÀàÐÍ:Article ÓïÖÖ:English Èë²ØºÅ: WOS:000301035400063 ISSN: 0030-4018 ÆÚ¿¯ÐÅÏ¢ Impact Factor (Ó°ÏìÒò×Ó): Journal Citation Reports® ÆäËûÐÅÏ¢ IDS ºÅ: 902JW Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 22 Web of Science ºËÐĺϼ¯ÖÐµÄ "±»ÒýƵ´Î": 5 |

2Â¥2014-09-09 00:36:51
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hotonic crystal; Photonic band gap; Core-shell-type nanorod