[1]陈宪锋,李淑娟,张 艳,等.基于光学Tamm态的广角度完美吸收[J].常州大学学报(自然科学版),2014,(02):83-88.[doi:10.3969/j.issn.2095-0411.2014.02.020]
　CHEN Xian-feng,LI Shu-juan,ZHANG Yan,et al.WideAngle Perfect Absorption Based on the Optical Tamm States[J].Journal of Changzhou University(Natural Science Edition),2014,(02):83-88.[doi:10.3969/j.issn.2095-0411.2014.02.020]
点击复制

基于光学Tamm态的广角度完美吸收()
分享到：

常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2014年02期
页码:
83-88
栏目:
数理科学
出版日期:
2014-04-30

文章信息/Info

Title:
WideAngle Perfect Absorption Based on the Optical Tamm States
作者:
陈宪锋; 李淑娟; 张 艳; 金子涵
常州大学 数理学院,江苏 常州 213164
Author(s):
CHEN Xian-feng;  LI Shu-juan; ZHANG Yan; JIN Zi-han
School of Physics and Mathematics,Changzhou University,Changzhou 213164,China
关键词:
光学Tamm态; 传输矩阵法; 完美吸收
Keywords:
optical Tamm states(OTS);  transfer matrix method;  perfect absorption
分类号:
O437
DOI:
10.3969/j.issn.2095-0411.2014.02.020
文献标志码:
A
摘要:
基于光学Tamm态设计了一个金属-DBR结构,利用传输矩阵理论,通过光子带隙中的反射谱dip位置来确定光学Tamm态(OTS)的本征波长,并进而研究了OTS的有关特征。在金属-DBR结构的界面处,存在着TE、TM模式的两种光学Tamm态,且可以用一般电磁波入射来激发。金属层厚度对OTS的本征波长及其相应的吸收率影响较大。随着金属层厚度的增加,OTS的本征波长将出现蓝移现象,即波长变短,最后逐渐趋近于一个稳定值,而结构对OTS的吸收率则出现一个峰值效应。当金属Ag层的厚度为39nm时,结构对OTS的吸收率接近于1,即完美吸收。进一步的研究表明,这一结构参数的金属-DBR结构,可以实现广角度的完美吸收。
Abstract:
Based on the optical Tamm states, a metalDBR structure is presented. The existence of the eigenwavelength of the optical Tamm states is demonstrated by the dip of the reflectivity map in the photonic band gap. The properties of the optical Tamm states are investigated by applying the transfer matrix method. OTSs can be directly excited in both TE and TM polarizations, even at normal incidence, especially in the metalDistributed Bragg Reflectors(DBR)interface. The Ag thickness have a big effect on on the absorption and wavelength. The eigenwavelength of the OTSs has a blueshift(the wavelength decreases)as the Ag thickness increase,and then gradually tend to a stable value while the peaking effects were found in the absorption. The perfect absorber will appear when the Ag thickness is 39 nm and the absorbance reach the maximum value 1. Further study shows that the wideangle perfect absorption appears under the parameters of the metalDBR structure.

参考文献/References:

[1] Landy N I, Sajuyigbe S, Mock J J, et al. Perfect metamaterial absorber[J]. Phys Rev Lett, 2008, 100(20): 207402.
[2]Yongkang Gong, Xueming Liu. Perfect absorber supported by optical Tamm states in plasmonic waveguide[J].Optics Express,2011, 19( 19): 18393-18398.
[3] Longhi S Pi.symmetric laser absorber[J]. Phys Rev Lett, 2010,82(3):031801.
[4] Kavokin A V, Shelykh I A, G Malpuech. Lossless interface modes at the boundary between two periodic dielectric structures[J]. Phys Rev B, 2005, 72(23):233102.
[5] 荆庆丽, 杜春光, 高健存. 表面等离子共振现象的新应用——微弱磁场的测量[J].物理学报,2013,62(3):037302.
[6]Kaliteevski M, Iorsh I, Brand S. Tamm plasmon.polaritons: Possible electromagnetic states at the interface of a metal and a dielectric Bragg mirror [J]. Phys Rev B, 2007, 76(16): 165415.
[7] Little C E, Anufriev R, Iorsh I. Tamm plasmon polaritons in multilayered cylindrical structures[J].Phys Rev B,2012,86(23): 033302.
[8] ZhangW L, RaoY. Optical Tamm state polaritons in a quantum well microcavity with gold layers[J].Chin Phys B,2012,21(5):057107.
[9]Haichun Zhou, Guang Yang.Multiple optical Tamm states at a metal.dielectric mirror interface[J]. Optics Letters, 2010,35(24): 4111-4114.
[10]Junghyun Park, Hwi Kwi. High order plasmonic Bragg reflection in the metal.insulator.metal waveguide Bragg grating[J]. Optics Express, 2008, 16(1):413-425.
[11] Hai Liu, Xiudong Sun. Optical magnetic field enhancement through coupling magnetic plasmons to Tamm plasmons[J]. Optics Express, 2012, 20(17):19160-19167.

备注/Memo

备注/Memo:
基于光学Tamm态的广角度完美吸收收稿日期:20131122。 作者简介:陈宪锋(1970-),男,江苏张家港人,硕士,副教授,主要从事光子晶体研究。
更新日期/Last Update: 2014-04-20