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Proceedings Paper

Observation of plasmonic exceptional points and attomolar immuno-assay nanosensing (Conference Presentation)
Author(s): Junhee Park; Abdoulaye Ndao; Boubacar Kanté

Paper 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

Paper Details

Date Published: 9 March 2020
Proc. SPIE 11274, Physics and Simulation of Optoelectronic Devices XXVIII, 1127413 (9 March 2020); doi: 10.1117/12.2544792
Show Author Affiliations
Junhee Park, Univ. of California, San Diego (United States)
Univ. of California, Berkeley (United States)
Abdoulaye Ndao, Univ. of California, Berkeley (United States)
Boubacar Kanté, Univ. of California, Berkeley (United States)

Published in SPIE Proceedings Vol. 11274:
Physics and Simulation of Optoelectronic Devices XXVIII
Bernd Witzigmann; Marek Osiński; Yasuhiko Arakawa, Editor(s)

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