Triple-Band Perfect Light Absorber Based on Hybrid Metasurface for Sensing Application

Abstract A simple design of triple-band perfect light absorber (PLA) based on hybrid metasurface in visible region has been presented in this work, which turns out to be applicable for refractive index (RI) sensing. Distinct from previous designs, the proposed hybrid metasurface for visible PLA is o...

Full description

Bibliographic Details
Main Authors: Yongzhi Cheng, Fu Chen, Hui Luo
Format: Article
Language:English
Published: SpringerOpen 2020-05-01
Series:Nanoscale Research Letters
Subjects:
Online Access:http://link.springer.com/article/10.1186/s11671-020-03332-x
_version_ 1797720358038536192
author Yongzhi Cheng
Fu Chen
Hui Luo
author_facet Yongzhi Cheng
Fu Chen
Hui Luo
author_sort Yongzhi Cheng
collection DOAJ
description Abstract A simple design of triple-band perfect light absorber (PLA) based on hybrid metasurface in visible region has been presented in this work, which turns out to be applicable for refractive index (RI) sensing. Distinct from previous designs, the proposed hybrid metasurface for visible PLA is only consisted of periodic silicon cross nanostructure arrays and gold substrate. The periodic silicon cross arrays deposited on the gold substrate contribute to excite the guided modes under the normal incident light illumination. According to the simulation results, it can be found that three perfect absorption peaks of 98.1%, 98.7%, and 99.6% which are located at 402.5 THz, 429.5 THz, and 471.5 THz, respectively, have been clearly observed in PLA. This triple-band perfect absorption effect could be attributed to the intrinsic loss of silicon material originated from the guided mode excitations caused by the standing waves of different orders. It has been confirmed that the perfect absorption properties of the PLA can be easily regulated by changing the geometric parameters of the unit-cell nanostructure. Furthermore, the designed PLA served as a RI sensor can achieve sensitivity of about 25.3, 41.3, and 31.9 THz /refractive index unit (RIU). It can be believed that the proposed design of PLA for RI sensing would provide great potential applications in sensing, detecting, the enhanced visible spectroscopy, etc.
first_indexed 2024-03-12T09:18:12Z
format Article
id doaj.art-9de62ac6d5e743b497d12aa64b288568
institution Directory Open Access Journal
issn 1556-276X
language English
last_indexed 2024-03-12T09:18:12Z
publishDate 2020-05-01
publisher SpringerOpen
record_format Article
series Nanoscale Research Letters
spelling doaj.art-9de62ac6d5e743b497d12aa64b2885682023-09-02T14:40:55ZengSpringerOpenNanoscale Research Letters1556-276X2020-05-0115111010.1186/s11671-020-03332-xTriple-Band Perfect Light Absorber Based on Hybrid Metasurface for Sensing ApplicationYongzhi Cheng0Fu Chen1Hui Luo2School of Information Science and Engineering, Wuhan University of Science and TechnologySchool of Information Science and Engineering, Wuhan University of Science and TechnologySchool of Information Science and Engineering, Wuhan University of Science and TechnologyAbstract A simple design of triple-band perfect light absorber (PLA) based on hybrid metasurface in visible region has been presented in this work, which turns out to be applicable for refractive index (RI) sensing. Distinct from previous designs, the proposed hybrid metasurface for visible PLA is only consisted of periodic silicon cross nanostructure arrays and gold substrate. The periodic silicon cross arrays deposited on the gold substrate contribute to excite the guided modes under the normal incident light illumination. According to the simulation results, it can be found that three perfect absorption peaks of 98.1%, 98.7%, and 99.6% which are located at 402.5 THz, 429.5 THz, and 471.5 THz, respectively, have been clearly observed in PLA. This triple-band perfect absorption effect could be attributed to the intrinsic loss of silicon material originated from the guided mode excitations caused by the standing waves of different orders. It has been confirmed that the perfect absorption properties of the PLA can be easily regulated by changing the geometric parameters of the unit-cell nanostructure. Furthermore, the designed PLA served as a RI sensor can achieve sensitivity of about 25.3, 41.3, and 31.9 THz /refractive index unit (RIU). It can be believed that the proposed design of PLA for RI sensing would provide great potential applications in sensing, detecting, the enhanced visible spectroscopy, etc.http://link.springer.com/article/10.1186/s11671-020-03332-xVisibleHybrid metasurfacePerfect light absorberSilicon cross nanostructure
spellingShingle Yongzhi Cheng
Fu Chen
Hui Luo
Triple-Band Perfect Light Absorber Based on Hybrid Metasurface for Sensing Application
Nanoscale Research Letters
Visible
Hybrid metasurface
Perfect light absorber
Silicon cross nanostructure
title Triple-Band Perfect Light Absorber Based on Hybrid Metasurface for Sensing Application
title_full Triple-Band Perfect Light Absorber Based on Hybrid Metasurface for Sensing Application
title_fullStr Triple-Band Perfect Light Absorber Based on Hybrid Metasurface for Sensing Application
title_full_unstemmed Triple-Band Perfect Light Absorber Based on Hybrid Metasurface for Sensing Application
title_short Triple-Band Perfect Light Absorber Based on Hybrid Metasurface for Sensing Application
title_sort triple band perfect light absorber based on hybrid metasurface for sensing application
topic Visible
Hybrid metasurface
Perfect light absorber
Silicon cross nanostructure
url http://link.springer.com/article/10.1186/s11671-020-03332-x
work_keys_str_mv AT yongzhicheng triplebandperfectlightabsorberbasedonhybridmetasurfaceforsensingapplication
AT fuchen triplebandperfectlightabsorberbasedonhybridmetasurfaceforsensingapplication
AT huiluo triplebandperfectlightabsorberbasedonhybridmetasurfaceforsensingapplication