Free-Standing Complementary Asymmetric Metasurface for Terahertz Sensing Applications

We designed and tested a highly sensitive metasurface device based on free-standing complementary asymmetric split-ring resonators at terahertz frequencies. It is utilized for sensing a galactose film. We characterized the device using the induced red shift of a Fano resonance observed in the THz tr...

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Main Authors: Fatima Taleb, Ibraheem Al-Naib, Martin Koch
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/20/8/2265
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author Fatima Taleb
Ibraheem Al-Naib
Martin Koch
author_facet Fatima Taleb
Ibraheem Al-Naib
Martin Koch
author_sort Fatima Taleb
collection DOAJ
description We designed and tested a highly sensitive metasurface device based on free-standing complementary asymmetric split-ring resonators at terahertz frequencies. It is utilized for sensing a galactose film. We characterized the device using the induced red shift of a Fano resonance observed in the THz transmission. The sensor has a high sensitivity of 91.7 GHz/RIU due to a significant interaction between the galactose overlayer and the metasurface.
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spelling doaj.art-3f15c25af624481cad34ffd39b63fb372023-11-19T21:48:42ZengMDPI AGSensors1424-82202020-04-01208226510.3390/s20082265Free-Standing Complementary Asymmetric Metasurface for Terahertz Sensing ApplicationsFatima Taleb0Ibraheem Al-Naib1Martin Koch2Faculty of Physics, Philipps-Universität Marburg, Renthof 5, 35032 Marburg, GermanyBiomedical Engineering Department, College of Engineering, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi ArabiaFaculty of Physics, Philipps-Universität Marburg, Renthof 5, 35032 Marburg, GermanyWe designed and tested a highly sensitive metasurface device based on free-standing complementary asymmetric split-ring resonators at terahertz frequencies. It is utilized for sensing a galactose film. We characterized the device using the induced red shift of a Fano resonance observed in the THz transmission. The sensor has a high sensitivity of 91.7 GHz/RIU due to a significant interaction between the galactose overlayer and the metasurface.https://www.mdpi.com/1424-8220/20/8/2265free-standingasymmetric split-ring resonatorssensingterahertz
spellingShingle Fatima Taleb
Ibraheem Al-Naib
Martin Koch
Free-Standing Complementary Asymmetric Metasurface for Terahertz Sensing Applications
Sensors
free-standing
asymmetric split-ring resonators
sensing
terahertz
title Free-Standing Complementary Asymmetric Metasurface for Terahertz Sensing Applications
title_full Free-Standing Complementary Asymmetric Metasurface for Terahertz Sensing Applications
title_fullStr Free-Standing Complementary Asymmetric Metasurface for Terahertz Sensing Applications
title_full_unstemmed Free-Standing Complementary Asymmetric Metasurface for Terahertz Sensing Applications
title_short Free-Standing Complementary Asymmetric Metasurface for Terahertz Sensing Applications
title_sort free standing complementary asymmetric metasurface for terahertz sensing applications
topic free-standing
asymmetric split-ring resonators
sensing
terahertz
url https://www.mdpi.com/1424-8220/20/8/2265
work_keys_str_mv AT fatimataleb freestandingcomplementaryasymmetricmetasurfaceforterahertzsensingapplications
AT ibraheemalnaib freestandingcomplementaryasymmetricmetasurfaceforterahertzsensingapplications
AT martinkoch freestandingcomplementaryasymmetricmetasurfaceforterahertzsensingapplications