Focusing analysis of a complex photonic crystal slab with negative refraction

被引：5

作者：

Wang, Hung-Wen ^{[1
]}

Wu, Mei-Ling ^{[1
]}

Chen, Lien-Wen ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Mech Engn, Tainan 70101, Taiwan

来源：

PHYSICA B-CONDENSED MATTER | 2010年 / 405卷 / 19期

关键词：

Negative refraction; Complex photonic crystal; Focusing resolution; LENS;

D O I：

10.1016/j.physb.2010.07.005

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The electromagnetic wave propagation in a two-dimensional (2D) complex triangular photonic crystal (PC) consisting of dielectric cylinders of different radii in air is investigated. The plane wave expansion (PWE) and finite element (FE) methods are used to study the optical and focusing properties of the complex PC. Interestingly, in contrast to a triangular PC consisting of dielectric cylinders of the same radius, the complex PC can generate a focusing effect with an effective refractive index of -1. Furthermore, a design is proposed using antireflection structures to enhance the transmission efficiency of light at the interfaces between the air and the PC slab. Numerical simulations show that appropriately adding antireflection structures to the surface of the slab can greatly improve the focusing resolution. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.

引用

页码：4157 / 4162

页数：6

共 27 条

[1]

[Anonymous], 2009, COMSOL 3 5A

[2] Negative refraction at infrared wavelengths in a two-dimensional photonic crystal -: art. no. 073902 [J].

Berrier, A ;

Mulot, M ;

Swillo, M ;

Qiu, M ;

Thylén, L ;

Talneau, A ;

Anand, S .

PHYSICAL REVIEW LETTERS, 2004, 93 (07)

[3] Imaging with subwavelength resolution by a generalized superlens at infrared wavelengths [J].

Casse, B. D. F. ;

Lu, W. T. ;

Banyal, R. K. ;

Huang, Y. J. ;

Selvarasah, S. ;

Dokmeci, M. R. ;

Perry, C. H. ;

Sridhar, S. .

OPTICS LETTERS, 2009, 34 (13) :1994-1996

[4] Subwavelength resolution in a two-dimensional photonic-crystal-based superlens [J].

Cubukcu, E ;

Aydin, K ;

Ozbay, E ;

Foteinopoulou, S ;

Soukoulis, CM .

PHYSICAL REVIEW LETTERS, 2003, 91 (20)

[5] Negative refraction and left-handed behavior in two-dimensional photonic crystals [J].

Foteinopoulou, S ;

Soukoulis, CM .

PHYSICAL REVIEW B, 2003, 67 (23)

[6] All-angle left-handed negative refraction in Kagome and honeycomb lattice photonic crystals [J].

Gajic, R ;

Meisels, R ;

Kuchar, F ;

Hingerl, K .

PHYSICAL REVIEW B, 2006, 73 (16)

[7] Simple plane wave implementation for photonic crystal calculations [J].

Guo, SP ;

Albin, S .

OPTICS EXPRESS, 2003, 11 (02) :167-175

[8]

Joannopoulos J. N., 1995, Photonic Crystals: Molding the Flow of Light

[9] Reflection minimization at two-dimensional photonic crystal interfaces [J].

Lee, Sun-Goo ;

Choi, Jin-sun ;

Kim, Jae-Eun ;

Park, Hae Yong .

OPTICS EXPRESS, 2008, 16 (06) :4270-4277

[10] Experimental demonstration of negative refraction imaging in both amplitude and phase [J].

Lu, ZL ;

Shi, SY ;

Schuetz, CA ;

Prather, DW .

OPTICS EXPRESS, 2005, 13 (06) :2007-2012

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