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
en 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.
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01-internacional
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MEDLINE
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En
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Opt Lett
/
Opt. lett. (Online)
/
Optics letters (Online)
Año:
2024
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Article