Numerical investigation of optical Tamm states in two-dimensional hybrid plasmonic-photonic crystal nanobeams

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	Numerical investigation of optical Tamm states in two-dimensional hybrid plasmonic-photonic crystal nanobeams
	Meng, ZM ; Hu, YH ; Ju, GF ; Zhong, XL ; Ding, W ; Li, ZY
刊名	JOURNAL OF APPLIED PHYSICS
	2014
卷号	116 期号:4
ISSN号	0021-8979
通讯作者	Meng, ZM (reprint author), Guangdong Univ Technol, Sch Phys & Optoelect Engn, Guangzhou 510006, Guangdong, Peoples R China.
中文摘要	Optical Tamm states (OTSs) in analogy with its electronic counterpart confined at the surface of crystals are optical surface modes at the interfaces between uniform metallic films and distributed Bragg reflectors. In this paper, OTSs are numerically investigated in two-dimensional hybrid plasmonic-photonic crystal nanobeams (HPPCN), which are constructed by inserting a metallic nanoparticle into a photonic crystal nanobeam formed by periodically etching square air holes into dielectric waveguides. The evidences of OTSs can be verified by transmission spectra and the field distribution at resonant frequency. Similar to OTSs in one-dimensional multilayer structures OTSs in HPPCN can be excited by both TE and TM polarization. The physical origin of OTSs in HPPCN is due to the combined contribution of strong reflection imposed by the photonic band gap (PBG) of the photonic crystal (PC) nanobeam and strong backward scattering exerted by the nanoparticle. For TE, incidence OTSs can be obtained at the frequency near the center of the photonic band gap. The transmissivity and the resonant frequency can be finely tuned by the dimension of nanoparticles. While for TM incidence OTSs are observed for relatively larger metallic nanoparticles compared with TE polarization. The differences between TE and TM polarization can be explained by two reasons. For one reason stronger backward scattering of nanoparticles for TE polarization can be achieved by the excitation of localized surface plasmon polariton of nanoparticles. This assumption has been proved by examining the scattering, absorption, and extinction cross section of the metallic nanoparticle. The other can be attributed to the deep and wide PBG available for TE polarization with less number of air holes compared with TM polarization. Our results show great promise in extending the application scope of OTSs from one-dimensional structures to practical integrated photonic devices and circuits. (C) 2014 AIP Publishing LLC.
资助信息	Special Funds for Universities Discipline and Specialty Construction of Guangdong Province, China [2013KJCX0066]; National Basic Research Foundation of China [2011CB922002]; Youth Science Foundation of Guangdong University of Technology [13QNZD018]
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59144]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Meng, ZM,Hu, YH,Ju, GF,et al. Numerical investigation of optical Tamm states in two-dimensional hybrid plasmonic-photonic crystal nanobeams[J]. JOURNAL OF APPLIED PHYSICS,2014,116(4).
APA	Meng, ZM,Hu, YH,Ju, GF,Zhong, XL,Ding, W,&Li, ZY.(2014).Numerical investigation of optical Tamm states in two-dimensional hybrid plasmonic-photonic crystal nanobeams.JOURNAL OF APPLIED PHYSICS,116(4).
MLA	Meng, ZM,et al."Numerical investigation of optical Tamm states in two-dimensional hybrid plasmonic-photonic crystal nanobeams".JOURNAL OF APPLIED PHYSICS 116.4(2014).