Analysis of Absolute Photonic Band Gaps in Two-dimensional Photonic Crystals Based on CdSe Rods Embedded in TiO2 Matrix

被引：0

作者：

Labbani, A. ^{[1
]}

Jouablia, L. ^{[1
]}

Benghalia, A. ^{[1
]}

机构：

[1] Univ Constantine 1, Dept Elect, Fac Engn Sci, Microwave & Semicond Lab, Constantine, Algeria

来源：

2014 21ST IEEE INTERNATIONAL CONFERENCE ON ELECTRONICS, CIRCUITS AND SYSTEMS (ICECS) | 2014年

关键词：

Absolute PBG; CdSe; TiO2; shell layer; thickness;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Using the plane-wave numerical expansion method, we investigate the band gap spectra of two-dimensional photonic crystals created by square and hexagonal lattices consisting of coating rods with a thin air layer in a titanium dioxide ( TiO2) matrix. Our results show that in a square lattice a coating alone does not help to create an absolute PBG. However, we showed that adding air hole into the center of each square unit cell can produce the absolute PBG. The optimum gap is achieved by tuning the thickness of the shell layer in the two types of lattices. We believe that the present results are significant to increase the possibilities for experimentalist to design a larger absolute PBG despite the very low contrast index between the rods and the matrix.

引用

页码：726 / 729

页数：4

共 15 条

[1] Larger two-dimensional photonic band gaps [J].

Anderson, CM ;

Giapis, KP .

PHYSICAL REVIEW LETTERS, 1996, 77 (14) :2949-2952

[2] Multiple photonic band gaps in the structures composed of core-shell particles [J].

Babin, V ;

Garstecki, P ;

Holyst, R .

JOURNAL OF APPLIED PHYSICS, 2003, 94 (07) :4244-4247

[3] Optical properties of very thin (<100nm) sol-gel TiO2 films [J].

Chrysicopoulou, P ;

Davazoglou, D ;

Trapalis, C ;

Kordas, G .

THIN SOLID FILMS, 1998, 323 (1-2) :188-193

[4]

Joannopoulos J. N., 1995, Photonic Crystals: Molding the Flow of Light

[5] STRONG LOCALIZATION OF PHOTONS IN CERTAIN DISORDERED DIELECTRIC SUPERLATTICES [J].

JOHN, S .

PHYSICAL REVIEW LETTERS, 1987, 58 (23) :2486-2489

[6] Annular photonic crystals [J].

Kurt, H ;

Citrin, DS .

OPTICS EXPRESS, 2005, 13 (25) :10316-10326

[7] Photonic band gaps in one- and two-dimensional photonic crystals based on a nanocomposite of ZnS and glass [J].

Labbani, A. ;

Saoudi, R. ;

Benghalia, A. .

JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS, 2009, 11 (08)

[8] Photonic band gaps in two-dimensional photonic crystals of core-shell-type dielectric nanorod heterostructures [J].

Liu, Dan ;

Gao, Yihua ;

Gao, Dingshan ;

Han, Xiangyun .

OPTICS COMMUNICATIONS, 2012, 285 (07) :1988-1992

[9] Single-crystal CdSe nanosaws [J].

Ma, C ;

Ding, Y ;

Moore, D ;

Wang, XD ;

Wang, ZL .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (03) :708-709

[10] Absolute photonic band gaps in a two-dimensional photonic crystal with hollow anisotropic rods [J].

Pan, T ;

Zhuang, F ;

Li, ZY .

SOLID STATE COMMUNICATIONS, 2004, 129 (08) :501-506

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