Effect of Mirror Characteristics on Critical Coupling in Plasmonic Nanostructures
NOPR - NISCAIR Online Periodicals Repository
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Title |
Effect of Mirror Characteristics on Critical Coupling in Plasmonic Nanostructures
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Creator |
L M, Jagathpriya
Dutta-Gupta, Shourya |
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Subject |
Plasmonics
Gold nanoparticles Critical coupling Perfect absorption |
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Description |
535-540
Plasmonic nanostructures have been used in various non-destructive sensing and modulation applications. The efficiency of plasmonic structures can be tuned by controlling their net optical absorption and near-field enhancement. In the current study, we numerically investigate the effect of mirror characteristics on absorption and near-field enhancement in critically coupled plasmonic structures. We explore structures with metallic mirrors and dielectric Bragg reflectors (DBR) and show that the optical response can be enhanced by a judicious choice of spacer thickness and operating wavelength. The results presented in this study provide a roadmap for designing plasmonic substrates with enhanced efficiencies. |
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Date |
2023-07-03T11:01:32Z
2023-07-03T11:01:32Z 2023-07 |
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Type |
Article
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Identifier |
0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscpr.res.in/handle/123456789/62243 https://doi.org/10.56042/ijpap.v61i7.105 |
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Language |
en
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Publisher |
NIScPR-CSIR, India
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Source |
IJPAP Vol.61(07) [July 2023]
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