1.
Opt Lett
; 49(10): 2581-2584, 2024 May 15.
Article
in English
| MEDLINE
| ID: mdl-38748110
ABSTRACT
We propose an optical analog of electron snake states based on an artificial gauge magnetic field in a photonic graphene implemented by varying distances between cavity pillars. We develop an intuitive and exhaustive continuous model based on tight-binding approximation and compare it with numerical simulations of a realistic photonic structure. The allowed lateral propagation direction is shown to be strongly coupled to the valley degree of freedom, and the proposed photonic structure may be used as a valley filter.