Photonic crystal nanoslotted parallel quadrabeam integrated cavity for refractive index sensing with high figure of merit

被引：2
|
作者：
Yang, Daquan [1 ]
Tian, Huiping [1 ]
Ji, Yuefeng [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, Sch Informat & Commun Engn, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China
来源：
PHOTONICS AND NANOSTRUCTURES-FUNDAMENTALS AND APPLICATIONS | 2015年 / 15卷
关键词：
Sensitivity; Optical sensors; Photonic crystal; Nanoslot; Integrated cavity; FOM; HIGH-SENSITIVITY; SENSOR; MICROCAVITIES; MICROFLUIDICS; FIBER; CHIP; SPR;
D O I：
10.1016/j.photonics.2015.01.008
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Sensitivities (S) and quality factors (Q) have been trade-offs in optical resonator sensors, and optimal geometry that maximizes both factors is under active development. In this paper, we experimentally demonstrate an optical sensor based on photonic crystal (PhC) nanoslotted parallel quadrabeam integrated cavity (NPQIC) with high figure of merit (FOM). Both high sensitivity (S) of 451 nm/RIU (refractive index unit) and Q-factor >7000 in water at telecom wavelength range have been achieved simultaneously, which features a sensor figure of merit (FOM) >2000, an order of magnitude improvement over previous photonic crystal sensors. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：124 / 129
页数：6
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