Topological optical parametric oscillation

Abstract: Topological insulators possess protected boundary states which are robust against disorders and have immense implications in both fermionic and bosonic systems. Harnessing these topological effects in nonequilibrium scenarios is highly desirable and has led to the development of topological lasers. The topologically protected boundary states usually lie within the bulk bandgap, and selectively exciting them without inducing instability in the bulk modes of bosonic systems is challenging. Here, we consider topological parametrically driven nonlinear resonator arrays that possess complex eigenvalues only in the edge modes in spite of the uniform pumping. We show parametric oscillation occurs in the topological boundary modes of one and two dimensional systems as well as in the corner modes of a higher order topological insulator system. Furthermore, we demonstrate squeezing dynamics below the oscillation threshold, where the quantum properties of the topological edge modes are robust against certain disorders. Our work sheds light on the dynamics of weakly nonlinear topological systems driven out-of-equilibrium and reveals their intriguing behavior in the quantum regime.

Angaben zum Objekt

• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch

Verweise und Beziehungen

• Erschienen in: Topological optical parametric oscillation ; volume:11 ; number:8 ; year:2022 ; pages:1611-1618 ; extent:8 ; Nanophotonics ; 11, Heft 8 (2022), 1611-1618 (gesamt 8)

Beteiligte, Orts- und Zeitangaben

• Urheber: Roy, Arkadev ; Parto, Midya ; Nehra, Rajveer ; Leefmans, Christian ; Marandi, Alireza

Weitere Informationen

• DOI: 10.1515/nanoph-2021-0765
• URN: urn:nbn:de:101:1-2022120813261439529576
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Letzte Aktualisierung: 15.08.2025, 07:36 MESZ