Research Paper: Design of Simple Plasmonic Sensors based on Graphene Circles in THZ Region
The design of optical sensors in the THz region for application in various fields of biological and medical sciences has significantly expanded in the last two decades. In this paper, we proposed an optical sensor using two dimensional and periodic structure of graphene rings on the dielectric subst...
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| Format: | Article |
| Language: | fas |
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Alzahra University
2023-12-01
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| Series: | فیزیک کاربردی ایران |
| Subjects: | |
| Online Access: | https://jap.alzahra.ac.ir/article_7296_77fd8f704308e1fd39a274ccf9986e31.pdf |
| _version_ | 1797194769537957888 |
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| author | Fatemeh Mehdizadeh Mehdi Khazaei Nezhad Gharahtekan |
| author_facet | Fatemeh Mehdizadeh Mehdi Khazaei Nezhad Gharahtekan |
| author_sort | Fatemeh Mehdizadeh |
| collection | DOAJ |
| description | The design of optical sensors in the THz region for application in various fields of biological and medical sciences has significantly expanded in the last two decades. In this paper, we proposed an optical sensor using two dimensional and periodic structure of graphene rings on the dielectric substrate. The surface plasmon resonance mechanism was employed to design the refractive index sensor. First, by changing the geometric parameters of the structure, the optimal parameters for the sensor performance have been extracted. Then, the sensor's sensitivity has been checked regarding the change in the refractive index of the surrounding environment. The sensitivity of the proposed simple structure is 11.2 μm/RIU and is larger than previous works. Also, increasing the refractive index of the measured medium diminished the quality of sensor operation. The proposed sensor can be used to detect environmental air pollution by proper calibration. The Lumerical software which is based on the finite difference time domain method is used to this end. |
| first_indexed | 2024-04-24T06:01:33Z |
| format | Article |
| id | doaj.art-e9d74650f91c4b3cb23d5382a957c23f |
| institution | Directory Open Access Journal |
| issn | 2783-1043 2783-1051 |
| language | fas |
| last_indexed | 2024-04-24T06:01:33Z |
| publishDate | 2023-12-01 |
| publisher | Alzahra University |
| record_format | Article |
| series | فیزیک کاربردی ایران |
| spelling | doaj.art-e9d74650f91c4b3cb23d5382a957c23f2024-04-23T07:29:08ZfasAlzahra Universityفیزیک کاربردی ایران2783-10432783-10512023-12-0113471910.22051/ijap.2023.43454.13197296Research Paper: Design of Simple Plasmonic Sensors based on Graphene Circles in THZ RegionFatemeh Mehdizadeh0Mehdi Khazaei Nezhad Gharahtekan1M. Sc. Graduated, Department of Physics, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, IranAssistant Professor, Department of Physics, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, IranThe design of optical sensors in the THz region for application in various fields of biological and medical sciences has significantly expanded in the last two decades. In this paper, we proposed an optical sensor using two dimensional and periodic structure of graphene rings on the dielectric substrate. The surface plasmon resonance mechanism was employed to design the refractive index sensor. First, by changing the geometric parameters of the structure, the optimal parameters for the sensor performance have been extracted. Then, the sensor's sensitivity has been checked regarding the change in the refractive index of the surrounding environment. The sensitivity of the proposed simple structure is 11.2 μm/RIU and is larger than previous works. Also, increasing the refractive index of the measured medium diminished the quality of sensor operation. The proposed sensor can be used to detect environmental air pollution by proper calibration. The Lumerical software which is based on the finite difference time domain method is used to this end.https://jap.alzahra.ac.ir/article_7296_77fd8f704308e1fd39a274ccf9986e31.pdfplasmonic sensor2d materialsfdtdsensitivityfigure of merit |
| spellingShingle | Fatemeh Mehdizadeh Mehdi Khazaei Nezhad Gharahtekan Research Paper: Design of Simple Plasmonic Sensors based on Graphene Circles in THZ Region فیزیک کاربردی ایران plasmonic sensor 2d materials fdtd sensitivity figure of merit |
| title | Research Paper: Design of Simple Plasmonic Sensors based on Graphene Circles in THZ Region |
| title_full | Research Paper: Design of Simple Plasmonic Sensors based on Graphene Circles in THZ Region |
| title_fullStr | Research Paper: Design of Simple Plasmonic Sensors based on Graphene Circles in THZ Region |
| title_full_unstemmed | Research Paper: Design of Simple Plasmonic Sensors based on Graphene Circles in THZ Region |
| title_short | Research Paper: Design of Simple Plasmonic Sensors based on Graphene Circles in THZ Region |
| title_sort | research paper design of simple plasmonic sensors based on graphene circles in thz region |
| topic | plasmonic sensor 2d materials fdtd sensitivity figure of merit |
| url | https://jap.alzahra.ac.ir/article_7296_77fd8f704308e1fd39a274ccf9986e31.pdf |
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