Narrowband Perfect Absorber Based on Dielectric-Metal Metasurface for Surface-Enhanced Infrared Sensing
We proposed a narrowband perfect absorber that was based on dielectric-metal metasurface for wide-band surface-enhanced infrared sensing. It is found that the narrowband perfect absorber can generate the hybrid guided modes with high quality-factor at infrared frequencies, which make the absorber hi...
Main Authors: | , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2020-03-01
|
Series: | Applied Sciences |
Subjects: | |
Online Access: | https://www.mdpi.com/2076-3417/10/7/2295 |
id |
doaj-c3c456829f4a4dac8290c44cac22c386 |
---|---|
record_format |
Article |
spelling |
doaj-c3c456829f4a4dac8290c44cac22c3862020-11-25T02:23:42ZengMDPI AGApplied Sciences2076-34172020-03-01102295229510.3390/app10072295Narrowband Perfect Absorber Based on Dielectric-Metal Metasurface for Surface-Enhanced Infrared SensingGuilian Lan0Zhongxie Jin1Jinpeng Nong2Peng Luo3Caicheng Guo4Zhengguo Sang5Lei Dong6Wei Wei7Key Laboratory of Optoelectronic Technology & Systems, Ministry of Education of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, ChinaKey Laboratory of Optoelectronic Technology & Systems, Ministry of Education of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, ChinaKey Laboratory of Optoelectronic Technology & Systems, Ministry of Education of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, ChinaKey Laboratory of Optoelectronic Technology & Systems, Ministry of Education of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, ChinaKey Laboratory of Optoelectronic Technology & Systems, Ministry of Education of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, ChinaKey Laboratory of Optoelectronic Technology & Systems, Ministry of Education of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, ChinaState Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, ChinaKey Laboratory of Optoelectronic Technology & Systems, Ministry of Education of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, ChinaWe proposed a narrowband perfect absorber that was based on dielectric-metal metasurface for wide-band surface-enhanced infrared sensing. It is found that the narrowband perfect absorber can generate the hybrid guided modes with high quality-factor at infrared frequencies, which make the absorber highly sensitive to the surrounded analyte. Moreover, tuning the incident angle can actively modulate the resonant wavelength of absorber. Such an absorber with excellent features is employed to realize both refractive index sensing and infrared vibrational fingerprint sensing on a single substrate. It is demonstrated that a refractive index sensitivity of 1800 nm/RIU and figure of merit of 62 RIU<sup>−1</sup> can be obtained as the refractive index sensor. While, as a surface enhanced infrared absorption spectroscopy substrate, two closed vibrational modes of analyte with nanometer thick layers can be effectively identified and selectively detected with 50-folds enhancement by actively tuning the incident angle without any change in the structural parameters (periodicity, width, height, and refractive index of the grating) of the device after fabricating. Our study offers a promising approach for designing high-performance surface-enhanced infrared optical sensors in the infrared region.https://www.mdpi.com/2076-3417/10/7/2295surface-enhanced infrared sensingnarrowband perfect absorberdielectric-metal metasurface |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Guilian Lan Zhongxie Jin Jinpeng Nong Peng Luo Caicheng Guo Zhengguo Sang Lei Dong Wei Wei |
spellingShingle |
Guilian Lan Zhongxie Jin Jinpeng Nong Peng Luo Caicheng Guo Zhengguo Sang Lei Dong Wei Wei Narrowband Perfect Absorber Based on Dielectric-Metal Metasurface for Surface-Enhanced Infrared Sensing Applied Sciences surface-enhanced infrared sensing narrowband perfect absorber dielectric-metal metasurface |
author_facet |
Guilian Lan Zhongxie Jin Jinpeng Nong Peng Luo Caicheng Guo Zhengguo Sang Lei Dong Wei Wei |
author_sort |
Guilian Lan |
title |
Narrowband Perfect Absorber Based on Dielectric-Metal Metasurface for Surface-Enhanced Infrared Sensing |
title_short |
Narrowband Perfect Absorber Based on Dielectric-Metal Metasurface for Surface-Enhanced Infrared Sensing |
title_full |
Narrowband Perfect Absorber Based on Dielectric-Metal Metasurface for Surface-Enhanced Infrared Sensing |
title_fullStr |
Narrowband Perfect Absorber Based on Dielectric-Metal Metasurface for Surface-Enhanced Infrared Sensing |
title_full_unstemmed |
Narrowband Perfect Absorber Based on Dielectric-Metal Metasurface for Surface-Enhanced Infrared Sensing |
title_sort |
narrowband perfect absorber based on dielectric-metal metasurface for surface-enhanced infrared sensing |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2020-03-01 |
description |
We proposed a narrowband perfect absorber that was based on dielectric-metal metasurface for wide-band surface-enhanced infrared sensing. It is found that the narrowband perfect absorber can generate the hybrid guided modes with high quality-factor at infrared frequencies, which make the absorber highly sensitive to the surrounded analyte. Moreover, tuning the incident angle can actively modulate the resonant wavelength of absorber. Such an absorber with excellent features is employed to realize both refractive index sensing and infrared vibrational fingerprint sensing on a single substrate. It is demonstrated that a refractive index sensitivity of 1800 nm/RIU and figure of merit of 62 RIU<sup>−1</sup> can be obtained as the refractive index sensor. While, as a surface enhanced infrared absorption spectroscopy substrate, two closed vibrational modes of analyte with nanometer thick layers can be effectively identified and selectively detected with 50-folds enhancement by actively tuning the incident angle without any change in the structural parameters (periodicity, width, height, and refractive index of the grating) of the device after fabricating. Our study offers a promising approach for designing high-performance surface-enhanced infrared optical sensors in the infrared region. |
topic |
surface-enhanced infrared sensing narrowband perfect absorber dielectric-metal metasurface |
url |
https://www.mdpi.com/2076-3417/10/7/2295 |
work_keys_str_mv |
AT guilianlan narrowbandperfectabsorberbasedondielectricmetalmetasurfaceforsurfaceenhancedinfraredsensing AT zhongxiejin narrowbandperfectabsorberbasedondielectricmetalmetasurfaceforsurfaceenhancedinfraredsensing AT jinpengnong narrowbandperfectabsorberbasedondielectricmetalmetasurfaceforsurfaceenhancedinfraredsensing AT pengluo narrowbandperfectabsorberbasedondielectricmetalmetasurfaceforsurfaceenhancedinfraredsensing AT caichengguo narrowbandperfectabsorberbasedondielectricmetalmetasurfaceforsurfaceenhancedinfraredsensing AT zhengguosang narrowbandperfectabsorberbasedondielectricmetalmetasurfaceforsurfaceenhancedinfraredsensing AT leidong narrowbandperfectabsorberbasedondielectricmetalmetasurfaceforsurfaceenhancedinfraredsensing AT weiwei narrowbandperfectabsorberbasedondielectricmetalmetasurfaceforsurfaceenhancedinfraredsensing |
_version_ |
1724857808701095936 |