Improvement of the Focusing Resolution of Photonic Crystal Negative Refraction Imaging with a Hollow Component Structure
CHEN Shou-Xiang1 , YANG Xiu-Lun1** , MENG Xiang-Feng1 , DONG Guo-Yan2 , WANG Yu-Rong1 , WANG Lin-Hui1 , HUANG Zhe1
1 Department of Optics, Shandong University, Jinan 2501002 Department of Materials Science and Engineering, Tsinghua University, Beijing 100084
Abstract ：The negative refraction and imaging effects in photonic crystals can be used to solve diffraction limit problem in near-field optics. Improving transmission efficiency and image resolution is a critical work for negative refraction imaging. We theoretically investigate the band structures, equi-frequency surfaces, electromagnetic wave propagation, and the image intensity distributions in a two-dimensional hexagonal photonic crystal consisting of hollow components. It is found that, in contrast to a hexagonal photonic crystal consisting of solid dielectric cylinders of the same radius, photonic crystals with hollow components can be used to optimize the all-angle negative refraction. Numerical simulations show that the transmission efficiency and resolution of image can be enhanced by changing the radii of the hollow air rods.
收稿日期: 2012-11-12
出版日期: 2013-05-31
:
42.30.Wb
(Image reconstruction; tomography)
42.68.Sq
(Image transmission and formation)
42.70.Qs
(Photonic bandgap materials)
74.62.Dh
(Effects of crystal defects, doping and substitution)
引用本文:
. [J]. 中国物理快报, 2013, 30(5): 54206-054206.
链接本文:
https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/30/5/054206
或
https://cpl.iphy.ac.cn/CN/Y2013/V30/I5/54206
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2013, Vol. 30 
