Design and analysis of an ultra-high sensitive and tunable metal-insulator-metal waveguide-coupled octagonal ring resonator utilizing gold nanorods
In this research paper, we propose a refractive index (RI) based plasmonic nanosensor comprising of metal-insulator-metal (MIM) waveguide and octagonal resonator embedded with gold nanorods. With the help of the finite element method (FEM), spectral characteristics are analyzed to determine the dete...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Sensing and Bio-Sensing Research |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214180422000587 |
| _version_ | 1828121654233923584 |
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| author | Nasir Muhammad Munim Tahmina Tabassum Treena Mohammad Rakibul Islam Mirza Muntasir Nishat |
| author_facet | Nasir Muhammad Munim Tahmina Tabassum Treena Mohammad Rakibul Islam Mirza Muntasir Nishat |
| author_sort | Nasir Muhammad Munim |
| collection | DOAJ |
| description | In this research paper, we propose a refractive index (RI) based plasmonic nanosensor comprising of metal-insulator-metal (MIM) waveguide and octagonal resonator embedded with gold nanorods. With the help of the finite element method (FEM), spectral characteristics are analyzed to determine the detection ability of the sensor in different wavelengths of the mid-infrared (MIR) range. By modifying important parameters and following a linear relationship between the transmittance profile and changes in the refractive index, the functionality of refractive index sensing is also studied. After optimization, the optimal structure achieved the sensitivity of 13,157 nm/RIU (Refractive Index Unit), which is the highest sensitivity recorded in plasmonic MIM waveguide-based sensors, as well as a high dip strength of 0.675921. Using gold nanorods, the plasmonic sensor can increase the sensitivity by 65.51%. The sensing resolution of the sensor is 7.6 × 10−8 for dielectrics with refractive indices from 1.32 to 1.38. Furthermore, the proposed sensor can be used as a nanophotonic device. Also, the refractive index detection range is excellent for different liquids (e.g., seawater, distilled water, water, mineral water, air, and optic oil). The designed structure is simple and easy to fabricate, so it can be used in nanometer-scale refractive index sensors. It can be a potential alternative to silver-based sensors due to its chemical stability and satisfactory performance in refractive index and biosensing. |
| first_indexed | 2024-04-11T14:23:22Z |
| format | Article |
| id | doaj.art-6a1b8e8746f04739b3d08fc50628dcd3 |
| institution | Directory Open Access Journal |
| issn | 2214-1804 |
| language | English |
| last_indexed | 2024-04-11T14:23:22Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Sensing and Bio-Sensing Research |
| spelling | doaj.art-6a1b8e8746f04739b3d08fc50628dcd32022-12-22T04:19:00ZengElsevierSensing and Bio-Sensing Research2214-18042022-12-0138100529Design and analysis of an ultra-high sensitive and tunable metal-insulator-metal waveguide-coupled octagonal ring resonator utilizing gold nanorodsNasir Muhammad Munim0Tahmina Tabassum Treena1Mohammad Rakibul Islam2Mirza Muntasir Nishat3Electrical and Electronic Engineering Department, Islamic University of Technology, Board Bazar, Gazipur 1704, BangladeshElectrical and Electronic Engineering Department, Islamic University of Technology, Board Bazar, Gazipur 1704, BangladeshCorresponding author.; Electrical and Electronic Engineering Department, Islamic University of Technology, Board Bazar, Gazipur 1704, BangladeshElectrical and Electronic Engineering Department, Islamic University of Technology, Board Bazar, Gazipur 1704, BangladeshIn this research paper, we propose a refractive index (RI) based plasmonic nanosensor comprising of metal-insulator-metal (MIM) waveguide and octagonal resonator embedded with gold nanorods. With the help of the finite element method (FEM), spectral characteristics are analyzed to determine the detection ability of the sensor in different wavelengths of the mid-infrared (MIR) range. By modifying important parameters and following a linear relationship between the transmittance profile and changes in the refractive index, the functionality of refractive index sensing is also studied. After optimization, the optimal structure achieved the sensitivity of 13,157 nm/RIU (Refractive Index Unit), which is the highest sensitivity recorded in plasmonic MIM waveguide-based sensors, as well as a high dip strength of 0.675921. Using gold nanorods, the plasmonic sensor can increase the sensitivity by 65.51%. The sensing resolution of the sensor is 7.6 × 10−8 for dielectrics with refractive indices from 1.32 to 1.38. Furthermore, the proposed sensor can be used as a nanophotonic device. Also, the refractive index detection range is excellent for different liquids (e.g., seawater, distilled water, water, mineral water, air, and optic oil). The designed structure is simple and easy to fabricate, so it can be used in nanometer-scale refractive index sensors. It can be a potential alternative to silver-based sensors due to its chemical stability and satisfactory performance in refractive index and biosensing.http://www.sciencedirect.com/science/article/pii/S2214180422000587Octagonal resonatorNanorodsSensitivityBiosensor |
| spellingShingle | Nasir Muhammad Munim Tahmina Tabassum Treena Mohammad Rakibul Islam Mirza Muntasir Nishat Design and analysis of an ultra-high sensitive and tunable metal-insulator-metal waveguide-coupled octagonal ring resonator utilizing gold nanorods Sensing and Bio-Sensing Research Octagonal resonator Nanorods Sensitivity Biosensor |
| title | Design and analysis of an ultra-high sensitive and tunable metal-insulator-metal waveguide-coupled octagonal ring resonator utilizing gold nanorods |
| title_full | Design and analysis of an ultra-high sensitive and tunable metal-insulator-metal waveguide-coupled octagonal ring resonator utilizing gold nanorods |
| title_fullStr | Design and analysis of an ultra-high sensitive and tunable metal-insulator-metal waveguide-coupled octagonal ring resonator utilizing gold nanorods |
| title_full_unstemmed | Design and analysis of an ultra-high sensitive and tunable metal-insulator-metal waveguide-coupled octagonal ring resonator utilizing gold nanorods |
| title_short | Design and analysis of an ultra-high sensitive and tunable metal-insulator-metal waveguide-coupled octagonal ring resonator utilizing gold nanorods |
| title_sort | design and analysis of an ultra high sensitive and tunable metal insulator metal waveguide coupled octagonal ring resonator utilizing gold nanorods |
| topic | Octagonal resonator Nanorods Sensitivity Biosensor |
| url | http://www.sciencedirect.com/science/article/pii/S2214180422000587 |
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