Tunable mid-infrared refractive index sensor with high angular sensitivity and ultra-high figure-of-merit based on Dirac semimetal

Tunable mid-infrared refractive index sensor with high angular sensitivity and ultra-high figure-of-merit based on Dirac semimetal

A tunable mid-infrared refractive index sensor consisting of bulk-Dirac-semimetal (BDS) and one-dimensional photonic crystals (1DPC) is proposed. This sensor has high angular sensitivity and ultra-high figure-of-merit (FOM), which is attributed to the optical Tamm states excited at the interfaces be...

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Main Authors: Yunyang Ye, Minzhu Xie, Jianxing Ouyang, Jiao Tang
Format: Article
Language:English
Published: Elsevier 2020-06-01
Series:Results in Physics
Subjects:
Angular sensitivity
Dirac semimetal
Figure-of-merit
Mid-infrared
Optical Tamm states
Sensor
Online Access:http://www.sciencedirect.com/science/article/pii/S2211379720304666
id doaj-3d4fb38b50854d96b9fc5c8713b83c70
record_format Article
spelling doaj-3d4fb38b50854d96b9fc5c8713b83c702020-11-25T03:44:42ZengElsevierResults in Physics2211-37972020-06-0117103035Tunable mid-infrared refractive index sensor with high angular sensitivity and ultra-high figure-of-merit based on Dirac semimetalYunyang Ye0Minzhu Xie1Jianxing Ouyang2Jiao Tang3College of Physics and Electronic Science, Hunan Normal University, Changsha 410081, ChinaCollege of Information Science and Engineering, Hunan Normal University, Changsha 410081, China; Corresponding author.College of Information Science and Engineering, Hunan Normal University, Changsha 410081, ChinaCollege of Physics and Electronic Science, Hunan Normal University, Changsha 410081, ChinaA tunable mid-infrared refractive index sensor consisting of bulk-Dirac-semimetal (BDS) and one-dimensional photonic crystals (1DPC) is proposed. This sensor has high angular sensitivity and ultra-high figure-of-merit (FOM), which is attributed to the optical Tamm states excited at the interfaces between BDS and 1DPC. Our numerical simulations show that the maximum value of the angular sensitivity and FOM of the sensor can reach up to 711.8°/RIU and 6001 RIU−1 respectively, which are much higher than those of the reported similar sensors. The simulations also demonstrate that the sensing performance can be adjusted by the Fermi energy and the structural parameters of the sensor. It is believed that, with the simple structure and the excellent performance, the proposed sensor has a broad application prospect in the field of biological detection.http://www.sciencedirect.com/science/article/pii/S2211379720304666Angular sensitivityDirac semimetalFigure-of-meritMid-infraredOptical Tamm statesSensor
collection DOAJ
language English
format Article
sources DOAJ
author Yunyang Ye
Minzhu Xie
Jianxing Ouyang
Jiao Tang
spellingShingle Yunyang Ye
Minzhu Xie
Jianxing Ouyang
Jiao Tang
Tunable mid-infrared refractive index sensor with high angular sensitivity and ultra-high figure-of-merit based on Dirac semimetal
Results in Physics
Angular sensitivity
Dirac semimetal
Figure-of-merit
Mid-infrared
Optical Tamm states
Sensor
author_facet Yunyang Ye
Minzhu Xie
Jianxing Ouyang
Jiao Tang
author_sort Yunyang Ye
title Tunable mid-infrared refractive index sensor with high angular sensitivity and ultra-high figure-of-merit based on Dirac semimetal
title_short Tunable mid-infrared refractive index sensor with high angular sensitivity and ultra-high figure-of-merit based on Dirac semimetal
title_full Tunable mid-infrared refractive index sensor with high angular sensitivity and ultra-high figure-of-merit based on Dirac semimetal
title_fullStr Tunable mid-infrared refractive index sensor with high angular sensitivity and ultra-high figure-of-merit based on Dirac semimetal
title_full_unstemmed Tunable mid-infrared refractive index sensor with high angular sensitivity and ultra-high figure-of-merit based on Dirac semimetal
title_sort tunable mid-infrared refractive index sensor with high angular sensitivity and ultra-high figure-of-merit based on dirac semimetal
publisher Elsevier
series Results in Physics
issn 2211-3797
publishDate 2020-06-01
description A tunable mid-infrared refractive index sensor consisting of bulk-Dirac-semimetal (BDS) and one-dimensional photonic crystals (1DPC) is proposed. This sensor has high angular sensitivity and ultra-high figure-of-merit (FOM), which is attributed to the optical Tamm states excited at the interfaces between BDS and 1DPC. Our numerical simulations show that the maximum value of the angular sensitivity and FOM of the sensor can reach up to 711.8°/RIU and 6001 RIU−1 respectively, which are much higher than those of the reported similar sensors. The simulations also demonstrate that the sensing performance can be adjusted by the Fermi energy and the structural parameters of the sensor. It is believed that, with the simple structure and the excellent performance, the proposed sensor has a broad application prospect in the field of biological detection.
topic Angular sensitivity
Dirac semimetal
Figure-of-merit
Mid-infrared
Optical Tamm states
Sensor
url http://www.sciencedirect.com/science/article/pii/S2211379720304666
work_keys_str_mv AT yunyangye tunablemidinfraredrefractiveindexsensorwithhighangularsensitivityandultrahighfigureofmeritbasedondiracsemimetal
AT minzhuxie tunablemidinfraredrefractiveindexsensorwithhighangularsensitivityandultrahighfigureofmeritbasedondiracsemimetal
AT jianxingouyang tunablemidinfraredrefractiveindexsensorwithhighangularsensitivityandultrahighfigureofmeritbasedondiracsemimetal
AT jiaotang tunablemidinfraredrefractiveindexsensorwithhighangularsensitivityandultrahighfigureofmeritbasedondiracsemimetal
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