Highly chiral exceptional point in perturbed coupled resonators

S. Ramezanpour, Y. Ra’di, A. Alù, A. Bogdanov

Research output: Contribution to journalConference Articlepeer-review


Exceptional point (EP) is a non-Hermitian spectral degeneracy that has application in ultrasensitive sensors and laser mode selectivity. By employing strong chirality in an optical system, the direction of light propagation can be controlled and subwavelength particles can be detected. Here, we show that EP with high chirality can appear in the coupled resonators perturbed by a scatterer, in which both the distance and position of the scatterer can be tuned. We achieve strong chiral EP in two different distances between the resonators, with chirality around 0.99 in both cases.

Original languageEnglish (US)
Article number012122
JournalJournal of Physics: Conference Series
Issue number1
StatePublished - Nov 17 2021
Externally publishedYes
Event6th International Conference on Metamaterials and Nanophotonics, METANANO 2021 - Tbilisi, Virtual, Georgia
Duration: Sep 13 2021Sep 17 2021

ASJC Scopus subject areas

  • General Physics and Astronomy


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