Sensor with enhanced performance based on photonic crystal with a defect layer

被引：5

作者：

Efimov, I. M. ^{[1
]}

Vanyushkin, N. A. ^{[1
]}

Golik, S. S. ^{[1
,2
]}

Gevorgyan, A. H. ^{[1
]}

机构：

[1] Far Eastern Fed Univ, Sch Nat Sci, Ajax Bay 10, Vladivostok 690922, Russia

[2] Russian Acad Sci, Inst Automat & Control Proc, Far East Branch, Vladivostok 690041, Russia

来源：

COMPUTER OPTICS | 2023年 / 47卷 / 04期

关键词：

sensor; photonic crystal; defect modes; organic contaminants; sensitivity; SPECTROSCOPY;

D O I：

10.18287/2412-6179-CO-1245

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose an improved structure of an optical biosensor based on a photonic crystal with a defect layer, which can detect the concentration of organic contaminants in water by defect mode shift. We investigated 4 types of defective photonic crystals with different arrangements of layers inside the perfect photonic crystals and their impact on the performance of the sensor. The sensitivity and amplitude of defect mode were examined as a function of defect layer thick-ness. Also, the peculiarities of edge modes in the presence of defect layer were investigated. Fi-nally, we obtained a characteristic equation to determine the wavelengths of defect modes for an arbitrary 1D photonic crystal with an isotropic defect inside.

引用

页码：572 / 579

页数：8

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