Analysis of a photonic crystal temperature sensor based on Z-shaped ring resonator

被引：26

作者：

Benmerkhi, Ahlem ^{[1
]}

Bounouioua, Amel ^{[1
]}

Bouchemat, Mohamed ^{[1
]}

Bouchemat, Touraya ^{[1
]}

机构：

[1] Univ Freres Mentouri, Lab LMI, Dept Elect, Fac Sci Technol, Route Ain El Bey, Constantine 25000 1, Algeria

来源：

OPTICAL AND QUANTUM ELECTRONICS | 2021年 / 53卷 / 01期

关键词：

Photonic crystal; Ring resonator; Channel filter; Temperature; Sensitivity; Quality factor;

D O I：

10.1007/s11082-020-02730-w

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：

A 2D photonic crystal (PC) sensor based on optical filter has been designed using a PC ring resonator (PCRR). The sensor used a 2D-PCRR triangular lattice with circular silicon rods placed in air background. We employed a ring resonator with Z-shaped core in the investigated structure, which is designed as temperature sensor and investigated theoretically along with high quality factor, transmission and sensitivity parameters. For sensing analysis, the 2D finite-difference time-domain method and the plane-wave expansion approach have been applied. A temperature variation from 0 to 20 degrees C causes a defect mode shifting and the channel filter wavelength shift was used as sensing mechanism. Using the number of the functionalized rods N=36 at the temperature of 5 degrees C, the quality factor, the temperature sensitivity, the refractive index sensitivity and the detection limit of the studied structure were found to be 57,104, 96 pm/degrees C, 400 nm/RIU and 6.16 x 10(-6) RIU, respectively.

引用

页数：14

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