Improved sensitivity of the photonic crystal slab biosensors by using elliptical air holes

被引：12

作者：

Benmerkhi, A. ^{[1
]}

Bouchemat, M. ^{[1
]}

Bouchemat, T. ^{[1
]}

机构：

[1] Univ Freres Mentouri, Dept Elect, Constantine, Algeria

来源：

OPTIK | 2016年 / 127卷 / 14期

关键词：

Cavity; Quality factor; Sensitivity; Biosensor; Ellipses; BAND-GAP; SENSOR; CAVITIES;

D O I：

10.1016/j.ijleo.2016.03.057

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate the dependence of sensitivity and quality factor of the resonant mode in photonic crystal H-1 cavity on the slab thickness. Three-dimensional finite difference time domain calculations is performed to study the dependence of quality factor and sensitivity on shape and size of the nearest neighbor holes of the cavity to obtain the optimum structures. For the slab thickness of 0.7a, the sensitivity can achieve 322 nm/RIU (refractive index unit) while the quality factor keeps a relatively high value of 5291 when the refractive index is 1.54. (C) 2016 Elsevier GmbH. All rights reserved.

引用

页码：5682 / 5687

页数：6

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