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Study of tunable band-gap properties in one-dimensional binary photonic crystals

FANG-CAO PENG1, MING-YU JIANG2, JIAN-WEI WU1,*

Affiliation

  1. College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing 401331, P.R. China
  2. College of Computer and Information Science, Chongqing Normal University, Chongqing 401331, P.R. China

Abstract

In this paper, the photonic band-gap of one-dimensional photonic crystals with (AB)N configuration is presented and thoroughly discussed based on transfer matrix method (TMM). Results show that band-gap properties including the width, central wavelength, and reflectance are directly related to refractive index, thickness, periodic number of dielectric materials, and incidence angle. By increasing the periodic number from 3 to 30, the reflectance is gradually enhanced till nearly stable. As both thickness ratio and refractive index ratio between two dielectric materials are increased, the band-gap width is remarkably extended. In addition, while the incidence angle is varied from 00 to 800, the band-gap width is compressed (TM wave) and slightly broadened (TE wave), and the central wavelength of band-gap is shifted to shorter wavelength compared to the case of normal incidence..

Keywords

Photonic crystals, Transfer matrix method, Photonic band-gap.

Citation

FANG-CAO PENG, MING-YU JIANG, JIAN-WEI WU, Study of tunable band-gap properties in one-dimensional binary photonic crystals, Optoelectronics and Advanced Materials - Rapid Communications, 11, 1-2, January-February 2017, pp.12-16 (2017).

Submitted at: Aug. 4, 2015

Accepted at: Feb. 10, 2017