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Light propagation in two dimensional rhombus lattices photonic crystal

PING JIANG1,* , KANG XIE2, HUAJUN YANG1, ZHENHAI WU2

Affiliation

  1. College of Physical Electronics, University of Electronic Science and Technology of China, Sichuan Province 610054, China
  2. College of Optoelectronic Information, University of Electronic Science and Technology of China, Sichuan Province 610054, China

Abstract

In this work we demonstrate that light propagation in two dimensional (2D) rhombus lattices photonic crystals (PhCs) exhibit unusual properties, such as negative refraction and superprism effects. Light beams with different frequencies launch into PhC with two truncation direction cases including along Г-T and Г-M directions are studied and different superprism phenomena are investigated. Plane wave expansion (PWE) method was used to study the photonic band structure curves and equal-frequency surfaces (EFCs) are plotted to find different refraction frequency ranges in both first and second bands. Finite-difference time-domain (FDTD) simulation was used to visualize wave propagation in PhCs..

Keywords

Rhombus lattices photonic crystals; Negative refraction; Superprism effect; Finite-difference time-domain simulation.

Submitted at: Aug. 22, 2011
Accepted at: Sept. 15, 2011

Citation

PING JIANG, KANG XIE, HUAJUN YANG, ZHENHAI WU, Light propagation in two dimensional rhombus lattices photonic crystal, Journal of Optoelectronics and Advanced Materials Vol. 13, Iss. 9, pp. 1071-1076 (2011)