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9 March 2020 Observation of plasmonic exceptional points and attomolar immuno-assay nanosensing (Conference Presentation)
Junhee Park, Abdoulaye Ndao, Boubacar Kanté
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Proceedings Volume 11274, Physics and Simulation of Optoelectronic Devices XXVIII; 1127413 (2020) https://doi.org/10.1117/12.2544792
Event: SPIE OPTO, 2020, San Francisco, California, United States
Abstract
We have demonstrated the first plasmonic exceptional points (EPs) at subwavelength scale. The plasmonic EPs are based on the hybridization of detuned resonances in multilayered plasmonic crystals to reach a critical complex coupling rate between nanoantennas arrays, and, exhibit the dispersion of exceptional points around the non-Hermitian singularity and enhanced nanosensing was observed. The ability to drive plasmons to EPs lays the foundation to explore topological physics at small scales and to novel sensors and optoelectronic devices based on topological polaritonic effects
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Junhee Park, Abdoulaye Ndao, and Boubacar Kanté "Observation of plasmonic exceptional points and attomolar immuno-assay nanosensing (Conference Presentation)", Proc. SPIE 11274, Physics and Simulation of Optoelectronic Devices XXVIII, 1127413 (9 March 2020); https://doi.org/10.1117/12.2544792
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KEYWORDS
Plasmonics
Nanosensors
Plasmons
Sensors
Biosensing
Blood circulation
Crystals
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