Wideband ultraflat slow light with large group index in a W1 photonic   crystal waveguide

doi:10.1063/1.3634074

CORC > 北京大学 > 信息科学技术学院

	Wideband ultraflat slow light with large group index in a W1 photonic crystal waveguide
	Liang, Jian ; Ren, Li-Yong ; Yun, Mao-Jin ; Han, Xu ; Wang, Xing-Jun
刊名	应用物理杂志
	2011
关键词	LOW-DISPERSION
DOI	10.1063/1.3634074
英文摘要	We demonstrate that slow light with large group-index, wideband, and low dispersion can be realized in a silicon-on-insulator W1-type photonic crystal waveguide by simply shifting the first two rows of air-holes adjacent to the waveguide to specific directions. Keeping the group index at 46, 60, 86, 111, 151, and 233, respectively, while restricting its variation within a +/- 10% range, we accordingly obtain a slow light bandwidth of 9.0 nm, 6.7 nm, 4.6 nm, 3.3 nm, 2.4 nm, and 1.7 nm, respectively. The normalized delay-bandwidth product keeps around 0.25 for all cases. Moreover, we obtain ultraflat slow light with bandwidths over 3.0 nm, 2.4 nm, 1.6 nm, 1.3 nm, 0.93 nm, and 0.6 nm, respectively, where the group index variation is in a range of only +/- 0.8%. Numerical simulations are performed, utilizing the 2D plane wave expansion method and the finite-difference time-domain method. (C) 2011 American Institute of Physics. [doi:10.1063/1.3634074]; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000295619300004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Physics, Applied; SCI(E); EI; 34; ARTICLE; 6; 110
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/238313]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Liang, Jian,Ren, Li-Yong,Yun, Mao-Jin,et al. Wideband ultraflat slow light with large group index in a W1 photonic crystal waveguide[J]. 应用物理杂志,2011.
APA	Liang, Jian,Ren, Li-Yong,Yun, Mao-Jin,Han, Xu,&Wang, Xing-Jun.(2011).Wideband ultraflat slow light with large group index in a W1 photonic crystal waveguide.应用物理杂志.
MLA	Liang, Jian,et al."Wideband ultraflat slow light with large group index in a W1 photonic crystal waveguide".应用物理杂志 (2011).