Self-collimation and superlensing in wavy-structured two-dimensional photonic crystals

被引：11
|
作者：
Li, YY [1 ]
Gu, PF [1 ]
Zhang, JL [1 ]
Li, MY [1 ]
Liu, X [1 ]
机构：
[1] Zhejiang Univ, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 15期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1063/1.2195108
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Wavy-structured two-dimensional (2D) photonic crystal (PC) is possessed of isofrequency contours of rectangular form and is therefore capable of self-collimation. The self-guiding phenomenon is studied by calculating the intensity of the electromagnetic waves through slabs of the PC. Superlensing based on self-collimation of wavy-structured 2DPC is also investigated by analyzing the field pattern where point source is used. The full width at half maximum of image point is calculated to be 0.28 lambda. The position of the image is always located in the near-field domain of the slab. Image quality degrades gradually as the slab thickness or the source-slab distance increases.
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页数：3
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