Verma, S;
Ghosh, S;
Rahman, BMA;
(2021)
Sensitivity analysis of a label-free detection using Opto-plasmonic nano-structured antenna.
In:
2021 IEEE International Conference on Sensors and Nanotechnology, SENNANO 2021.
(pp. pp. 93-96).
IEEE: Port Dickson, Malaysia.
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Abstract
This paper reports a design method of optoplasmonics sensor that consider a pair of elliptical gold nano antenna mounted on a quartz substrate. A 2D array of gold nano antenna can be used for a variety of biomedical applications due to its key electronic and optical properties which are shape and size dependent. An elliptical shaped coupled gold nano antenna with 100 nm major axis, a and 10 nm minor axis, b was optimized with separation distance, g and height, h to achieve a high sensitivity with a narrow full-width half-maximum (FWHM) and a good figure of merit (FOM). By exploiting the resonance shift of transmission spectra and high electric field confinements, the sensitivity of the proposed sensor was obtained nearly 526-530 nm/RIU and the FWHM and FOM were calculated around 110 nm and 8.1, respectively. Additionally, the proposed sensing structure have been explored to measure the 2-propanol (IPA) concentration in water.
| Type: | Proceedings paper |
|---|---|
| Title: | Sensitivity analysis of a label-free detection using Opto-plasmonic nano-structured antenna |
| Event: | 2021 IEEE International Conference on Sensors and Nanotechnology (SENNANO) |
| Location: | ELECTR NETWORK |
| Dates: | 22 Sep 2021 - 24 Sep 2021 |
| ISBN-13: | 9781665404396 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/SENNANO51750.2021.9642511 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Science & Technology, Technology, Nanoscience & Nanotechnology, Materials Science, Biomaterials, Science & Technology - Other Topics, Materials Science, nano-antenna, sensitivity, FOM, full-width half-maximum, resonating wavelength |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10158277 |
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