Methane detection approach based on THz wave absorber
A simple and efficient methane detection approach has been developed in this paper. A THz wave absorber sensitive to refractive index is designed. The proposed absorber mainly uses nested graphene rings and continuous graphene sheets. Two scenarios are followed in this paper. Firstly, a simple singl...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Sensing and Bio-Sensing Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214180425000248 |
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| author | Alireza Barati Haghverdi Ilghar Rezaei Amir Ali Mohammad Khani Toktam Aghaee |
| author_facet | Alireza Barati Haghverdi Ilghar Rezaei Amir Ali Mohammad Khani Toktam Aghaee |
| author_sort | Alireza Barati Haghverdi |
| collection | DOAJ |
| description | A simple and efficient methane detection approach has been developed in this paper. A THz wave absorber sensitive to refractive index is designed. The proposed absorber mainly uses nested graphene rings and continuous graphene sheets. Two scenarios are followed in this paper. Firstly, a simple single layer including graphene rings on top of the Kapton dielectric and backside coated gold is suggested. The graphene rings face free space or polluted air with a known refractive index in this situation. The second scenario considers the sample (probably toxic polluted air) in the middle layer and also in free space. Both states are mathematically modeled in terms of referred impedance. Additionally, full-wave simulations are also performed. The equivalent impedance can reveal the absorption response of the structure with the aim of impedance matching or maximum power transmission theorem. Interestingly, the impedance modeling converges to the numerical full-wave simulation, verifying efficient mathematical modeling. Furthermore, ample simulation results are provided to investigate the robustness and reliability of the proposed methane optical detector. Based on the findings, the proposed detector is highly appropriate for gas detection, specifically for the healthcare industry due to using Kapton which makes it flexible and wearable. |
| format | Article |
| id | doaj-art-4e2417b583b84cfea6cfed07dc6aff56 |
| institution | Kabale University |
| issn | 2214-1804 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Sensing and Bio-Sensing Research |
| spelling | doaj-art-4e2417b583b84cfea6cfed07dc6aff562025-02-05T04:32:02ZengElsevierSensing and Bio-Sensing Research2214-18042025-02-0147100758Methane detection approach based on THz wave absorberAlireza Barati Haghverdi0Ilghar Rezaei1Amir Ali Mohammad Khani2Toktam Aghaee3Department of Civil Engineering, Asrar Institute of Higher Education, Mashhad, IranDepartment of Electrical and Electronic Engineering, Islamic Azad University, Central Tehran Branch, Tehran, IranDepartment of Electrical and Electronic Engineering, Islamic Azad University, Saveh Branch, Saveh, Iran.Department of Electrical and Electronic Engineering, Semnan University, Semnan, Iran; Corresponding author.A simple and efficient methane detection approach has been developed in this paper. A THz wave absorber sensitive to refractive index is designed. The proposed absorber mainly uses nested graphene rings and continuous graphene sheets. Two scenarios are followed in this paper. Firstly, a simple single layer including graphene rings on top of the Kapton dielectric and backside coated gold is suggested. The graphene rings face free space or polluted air with a known refractive index in this situation. The second scenario considers the sample (probably toxic polluted air) in the middle layer and also in free space. Both states are mathematically modeled in terms of referred impedance. Additionally, full-wave simulations are also performed. The equivalent impedance can reveal the absorption response of the structure with the aim of impedance matching or maximum power transmission theorem. Interestingly, the impedance modeling converges to the numerical full-wave simulation, verifying efficient mathematical modeling. Furthermore, ample simulation results are provided to investigate the robustness and reliability of the proposed methane optical detector. Based on the findings, the proposed detector is highly appropriate for gas detection, specifically for the healthcare industry due to using Kapton which makes it flexible and wearable.http://www.sciencedirect.com/science/article/pii/S2214180425000248THzCircuit modelingGrapheneMethaneGas sensing |
| spellingShingle | Alireza Barati Haghverdi Ilghar Rezaei Amir Ali Mohammad Khani Toktam Aghaee Methane detection approach based on THz wave absorber Sensing and Bio-Sensing Research THz Circuit modeling Graphene Methane Gas sensing |
| title | Methane detection approach based on THz wave absorber |
| title_full | Methane detection approach based on THz wave absorber |
| title_fullStr | Methane detection approach based on THz wave absorber |
| title_full_unstemmed | Methane detection approach based on THz wave absorber |
| title_short | Methane detection approach based on THz wave absorber |
| title_sort | methane detection approach based on thz wave absorber |
| topic | THz Circuit modeling Graphene Methane Gas sensing |
| url | http://www.sciencedirect.com/science/article/pii/S2214180425000248 |
| work_keys_str_mv | AT alirezabaratihaghverdi methanedetectionapproachbasedonthzwaveabsorber AT ilgharrezaei methanedetectionapproachbasedonthzwaveabsorber AT amiralimohammadkhani methanedetectionapproachbasedonthzwaveabsorber AT toktamaghaee methanedetectionapproachbasedonthzwaveabsorber |