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Self-collimation and subwavelength imaging in two-dimensional photonic crystal

HUANG PIN-BO1,* , ZOU WEN-DONG1

Affiliation

  1. Key laboratory of Nondestructive Test (Ministry of Education), Nanchang Hangkong University, Nanchang,China,330063

Abstract

Self-collimation and near-field subwavelength imaging in 2D air-cylinder photonic crystals are dicussed by finited-difference time-domain (FDTD) method. The investigation shows using the equal-frequency surface, self-collimation frequency range can be confirmed and self-collimation phenomenon of point source along different axis is simulated. It is also able to reproduce the details of subwavelength in the image plane by virtue of self-collimation rather than negative refraction. The resolution of 0.416 λ is obtained for single pointed source and decrease as the light gradually away from near field..

Keywords

Photonic crustal, Self-collimation, FDTD method.

Submitted at: Jan. 6, 2011
Accepted at: April 11, 2011

Citation

HUANG PIN-BO, ZOU WEN-DONG, Self-collimation and subwavelength imaging in two-dimensional photonic crystal, Journal of Optoelectronics and Advanced Materials Vol. 13, Iss. 4, pp. 327-330 (2011)