Engineering of energy band and its impact on the light transmission in a non-reciprocal Hermitian hourglass lattice.
Opt Lett
; 49(2): 266-269, 2024 Jan 15.
Article
in En
| MEDLINE
| ID: mdl-38194544
ABSTRACT
We study a quasi-one-dimensional non-reciprocal Hermitian hourglass photonic lattice that can accomplish multiple functions. Under the effect of non-reciprocal coupling, this lattice can produce an energy isolation effect, two kinds of flatbands, and energy band inversion. The excitation and propagation of a single energy band and multiple energy bands can be realized; in the flatband condition, the system has compact localized states, and the flatbands can be excited by a straightforward method. Our findings advance the theory of energy band regulation in artificial photonic lattices.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Opt Lett
Year:
2024
Document type:
Article
Country of publication:
Estados Unidos