A Model of Dual Fabry-Perot Etalon-Based External-Cavity Tunable Laser Us...
Internal motion within pulsating pure-quartic soliton molecules in a fibe...
Enhanced light emission of germanium light-emitting-diode on 150 mm germa...
The Fabrication of GaN Nanostructures Using Cost-Effective Methods for Ap...
Negative-to-Positive Tunnel Magnetoresistance in van der Waals Fe3GeTe2/C...
Quantum Light Source Based on Semiconductor Quantum Dots: A Review
A High-Reliability RF MEMS Metal-Contact Switch Based on Al-Sc Alloy
Development of a Mode-Locked Fiber Laser Utilizing a Niobium Diselenide S...
Development of Multiple Fano-Resonance-Based All-Dielectric Metastructure...
Traffic Vibration Signal Analysis of DAS Fiber Optic Cables with Differen...
官方微信
友情链接

Simultaneous detection of complex refractive index and temperature using a compact side-coupled photonic crystal nanobeam cavity

2021-09-17

 

Author(s): Han, Z (Han, Zhe); Wang, C (Wang, Chao); Liu, YY (Liu, Yuanyuan); Tian, HP (Tian, Huiping)

Source: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Volume: 38 Issue: 9 Pages: 2765-2774 DOI: 10.1364/JOSAB.428815 Published: SEP 1 2021

Abstract: In this paper, we theoretically propose a compact photonic crystal nanobeam cavity (PCNC) side coupled with a waveguide for sensing complex refractive index (CRI) and temperature (T). Two Fano resonances are achieved by coupling two discrete states (zeroth-order mode and first-order mode) in a PCNC and the continuous state in the waveguide with a partial transmitting element. The transmission expression is derived based on the temporal coupled-mode theory. By measuring the wavelength shifts and shape changes of two Fano resonances in the transmission spectrum, not only the real part of the refractive index (RRI) and the imaginary part of the refractive index (IRI) can be sensed simultaneously, but also the effect of T on CRI is considered. The sensitivities of RRI for zeroth-order mode and first-order mode are 152.7 nm/refractive index unit (RIU) and 183.7 nm/RIU, respectively. The sensitivities of IRI are -461/RIU and -198/RIU for zeroth-order mode and first-order mode, respectively. The T sensitivities for zeroth-order mode and first-order mode are 58.6 pm/K and 55.6 pm/K, respectively. The fringe visibility values of both modes are more than 0.5. The relationship between structural parameters and coupling effect is studied and the effect of T on detection accuracy is discussed. To the best of our knowledge, this is the first geometry to simultaneously sense CRI and T. Moreover, the total footprint of the device is only 11 x 1.45 x 0.22 (length x width x height) mu m(3), which will contribute to the large-scale integrated sensor array on chip. (C) 2021 Optical Society of America

Accession Number: WOS:000692200200068

ISSN: 0740-3224

eISSN: 1520-8540

Full Text: https://www.osapublishing.org/josab/fulltext.cfm?uri=josab-38-9-2765&id=458224



关于我们
下载视频观看
联系方式
通信地址

北京市海淀区清华东路甲35号(林大北路中段) 北京912信箱 (100083)

电话

010-82304210/010-82305052(传真)

E-mail

semi@semi.ac.cn

交通地图
版权所有 中国科学院半导体研究所

备案号:京ICP备05085259-1号 京公网安备110402500052 中国科学院半导体所声明