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Self-induced nonreciprocity from asymmetric photonic topological insulators

Kilic, Sema Guvenc ; Kilic, Ufuk ; Schubert, Mathias LU orcid ; Schubert, Eva and Argyropoulos, Christos (2025) In Physical Review Applied 24(4).
Abstract

Photonic topological insulators and self-induced nonreciprocity based on nonlinear effects in asymmetric structures have garnered increased attention due to their potential applications in quantum information technologies and advanced photonic integrated circuits. In this study, we combine these two fields and present asymmetric photonic crystal designs based on all-dielectric checkerboard structures forming topological interfaces. The resulting topological photonic structures lead to the emergence of a narrowband leaky mode in their linear transmission response, accompanied by an edge state with topological protection. The incorporation of the nonlinear optical Kerr effect in the system results in spectral tunability and transmission... (More)

Photonic topological insulators and self-induced nonreciprocity based on nonlinear effects in asymmetric structures have garnered increased attention due to their potential applications in quantum information technologies and advanced photonic integrated circuits. In this study, we combine these two fields and present asymmetric photonic crystal designs based on all-dielectric checkerboard structures forming topological interfaces. The resulting topological photonic structures lead to the emergence of a narrowband leaky mode in their linear transmission response, accompanied by an edge state with topological protection. The incorporation of the nonlinear optical Kerr effect in the system results in spectral tunability and transmission nonreciprocity in the induced topological edge states, as the input beam intensity is increased, due to the introduction of asymmetric defects along the interface. We envision that the findings presented in our work will lead to tunable photonic topological insulators with a nonreciprocal response that promise to provide new avenues for the development of next-generation photonic devices and quantum optical technologies.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Applied
volume
24
issue
4
article number
044009
publisher
American Physical Society
external identifiers
  • scopus:105022849317
ISSN
2331-7019
DOI
10.1103/dnp4-z1xk
language
English
LU publication?
yes
id
e0344a76-e4d1-4696-996e-aae67c16e55f
date added to LUP
2026-01-30 16:06:07
date last changed
2026-01-30 16:06:23
@article{e0344a76-e4d1-4696-996e-aae67c16e55f,
  abstract     = {{<p>Photonic topological insulators and self-induced nonreciprocity based on nonlinear effects in asymmetric structures have garnered increased attention due to their potential applications in quantum information technologies and advanced photonic integrated circuits. In this study, we combine these two fields and present asymmetric photonic crystal designs based on all-dielectric checkerboard structures forming topological interfaces. The resulting topological photonic structures lead to the emergence of a narrowband leaky mode in their linear transmission response, accompanied by an edge state with topological protection. The incorporation of the nonlinear optical Kerr effect in the system results in spectral tunability and transmission nonreciprocity in the induced topological edge states, as the input beam intensity is increased, due to the introduction of asymmetric defects along the interface. We envision that the findings presented in our work will lead to tunable photonic topological insulators with a nonreciprocal response that promise to provide new avenues for the development of next-generation photonic devices and quantum optical technologies.</p>}},
  author       = {{Kilic, Sema Guvenc and Kilic, Ufuk and Schubert, Mathias and Schubert, Eva and Argyropoulos, Christos}},
  issn         = {{2331-7019}},
  language     = {{eng}},
  number       = {{4}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Applied}},
  title        = {{Self-induced nonreciprocity from asymmetric photonic topological insulators}},
  url          = {{http://dx.doi.org/10.1103/dnp4-z1xk}},
  doi          = {{10.1103/dnp4-z1xk}},
  volume       = {{24}},
  year         = {{2025}},
}