Hybridization of different types of exceptional points
1. RFP : 다중 감염성 질환 스크리닝을 위한 멀티채널 진단키트 개발
2. 해당분과 : 4-1-2 과제
3. 과제명 : 감염성 질환 다중 면역진단 기기 개발
4. 연구책임자 : 김은주(대구경북과학기술원)
[Abstract]
A large number of different types of second-order non-Hermitian degeneracies called exceptional points (EPs) were found in various physical systems depending on the mechanism of coupling between eigenstates. We show that these EPs can be hybridized to form higher-order EPs, which preserve the original properties of the initial EPs before hybridization. For a demonstration, we hybridize chiral and supermode second-order EPs, where the former and the latter are the results of intra-disk and inter-disk mode coupling in an optical system comprised of two Mie-scale microdisks and one Rayleigh-scale scatterer. The high sensitivity of the resulting third-order EP against external perturbations in our feasible system is emphasized.