Band gap properties of 2D square lattice photonic crystal composed of rectangular cells

doi:10.1007/s12200-013-0327-9

Front Optoelec

2013, Vol. 6

Issue (3) : 346-352 https://doi.org/10.1007/s12200-013-0327-9

RESEARCH ARTICLE

Band gap properties of 2D square lattice photonic crystal composed of rectangular cells

Somaye SERAJMOHAMMADI¹(

), Hamed ALIPOUR-BANAEI²

1. Department of Electrical Engineering, Ahar Branch, Islamic Azad University, Ahar, Iran; 2. Department of Electronics, Tabriz Branch, Islamic Azad University, Tabriz, Iran

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Abstract

In this paper, the photonic band gap (PBG) properties of two dimensional (2D) square lattice photonic crystal structures composed of rectangular cells were studied. The effect of refractive index, rectangles length and the ratio of width to length of the rectangles on the PBG properties of the structure with different configurations was investigated. It is found that the density of gaps in both modes (transverse electric (TE) and transverse magnetic (TM)) is high for structure composed of rectangular dielectric rods in air, while the density of the gaps is very low for structure composed of rectangular air pores in dielectric material.

Keywords photonic crystal (PhC) band gap refractive index

Corresponding Author(s): SERAJMOHAMMADI Somaye,Email:s-seraj@iau-ahar.ac.ir

Issue Date: 05 September 2013

Cite this article:

Somaye SERAJMOHAMMADI,Hamed ALIPOUR-BANAEI. Band gap properties of 2D square lattice photonic crystal composed of rectangular cells[J]. Front Optoelec, 2013, 6(3): 346-352.

URL:

https://academic.hep.com.cn/foe/EN/10.1007/s12200-013-0327-9
https://academic.hep.com.cn/foe/EN/Y2013/V6/I3/346

Fig.1 Typical photonic crystal with horizontal rectangular cells

Fig.2 Gap map of structure composed of horizontal (a) dielectric rods; (b) air pores versus refractive index ()

Fig.3 Gap map of structure composed of horizontal (a) dielectric rods; (b) air pores versus/ ratio

Fig.4 Gap map of structure composed of horizontal (a) dielectric rods; (b) air pores versus width to length ratio ()

Fig.5 Typical photonic crystal with vertical rectangular cells

Fig.6 Gap map of structure composed of vertical (a) dielectric rods; (b) air pores versus refractive index ()

Fig.7 Gap map of structure composed of vertical (a) dielectric rods; (b) air pores versus / ratio

Fig.8 Gap map of structure composed of vertical (a) dielectric rods; (b) air pores versus width to length ratio ()

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