Journal
OPTICS EXPRESS
Volume 30, Issue 11, Pages 18098-18107Publisher
Optica Publishing Group
DOI: 10.1364/OE.454493
Keywords
-
Categories
Funding
- Agence Nationale de la Recherche [10-IDEX-0001-02 PSL*, 12-BS09-003-01]
- Israel Science Foundation [1871/15, 2074/15, 2630/20]
- United States -Israel Binational Science Foundation [2015694]
- H2020 Marie SklodowskaCurie Actions [840745]
- Marie Curie Actions (MSCA) [840745] Funding Source: Marie Curie Actions (MSCA)
Ask authors/readers for more resources
A non-perturbative theory is proposed to predict the position of exceptional points in disordered scattering media, particularly in disordered photonic systems. The accuracy of the method depends on the number of localized states considered.
In non-Hermitian settings, the particular position at which two eigenstates coalesce in the complex plane under a variation of a physical parameter is called an exceptional point. An open disordered system is a special class of non-Hermitian system, where the degree of scattering directly controls the confinement of the modes. Herein a non-perturbative theory is proposed which describes the evolution of modes when the permittivity distribution of a 2D open dielectric system is modified, thereby facilitating to steer individual eigenstates to such a non-Hermitian degeneracy. The method is used to predict the position of such an exceptional point between two Anderson-localized states in a disordered scattering medium. We observe that the accuracy of the prediction depends on the number of localized states accounted for. Such an exceptional point is experimentally accessible in practically relevant disordered photonic systems. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available