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Infrared Plasmonic Refractive Index Sensor with Ultra-High Figure of Merit Based on the Optimized All-Metal Grating
Open accessAbstract
A perfect ultra-narrow band infrared metamaterial absorber based on the all-metal-grating structure is proposed. The absorber presents a perfect absorption efficiency of over 98% with an ultra-narrow bandwidth of 0.66 nm at normal incidence. This high efficient absorption is contributed to the surface plasmon resonance. Moreover, the surface plasmon resonance-induced strong surface electric field enhancement is favorable for application in biosensing system. When operated as a plasmonic refractive index sensor, the ultra-narrow band absorber has a wavelength sensitivity 2400 nm/RIU and an ultra-high figure of merit 3640, which are much better than those of most reported similar plasmonic sensors. Besides, we also comprehensively investigate the influences of structural parameters on the sensing properties. Due to the simplicity of its geometry structure and its easiness to be fabricated, the proposed high figure of merit and sensitivity sensor indicates a competitive candidate for applications in sensing or detecting fields.
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Cited by
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Bhatt, M. D., Kim, H., & Kim, G. (2022) · RSC Advances · doi:10.1039/d2ra01436j · Cited by 386
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Dar, M. A., Majid, S. R., Satgunam, M., Siva, C., Ansari, S., Arularasan, P., & Rafi Ahamed, S. (2024) · International Journal of Hydrogen Energy · doi:10.1016/j.ijhydene.2024.05.191 · Cited by 258
Manoharan, P., Dhanabalan, S. C., Alagan, M., Muthuvijayan, S., Ponraj, J. S., & Somasundaram, C. K. (2020) · Micro & Nano Letters · doi:10.1049/mnl.2020.0101 · Cited by 28
Fukasawa, R., Asahi, T., & Taniguchi, T. (2024) · Energy Advances · doi:10.1039/d3ya00617d · Cited by 12
Metadata
- Authors
- Li, R., Wu, D., Liu, Y., Yu, L., Yu, Z., & Ye, H.
- Venue
- Nanoscale Research Letters
- Published
- 2017-01-03
- Volume
- 12
- Issue
- 1
- Pages
- 1-1
- ISSN
- 1556-276X (ISSN-L)
- 1931-7573
- OpenAlex
- W2560989997
- Cited by
- 620
- References
- 0
- FWCI
- 21.18
- Type
- journal article
- Language
- en
- Open access
- gold
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- Li, R., Wu, D., Liu, Y., Yu, L., Yu, Z., & Ye, H. (2017). Infrared Plasmonic Refractive Index Sensor with Ultra-High Figure of Merit Based on the Optimized All-Metal Grating. Nanoscale Research Letters. https://doi.org/10.1186/s11671-016-1773-2
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