Realizing quasi-monochromatic switchable thermal emission from electro-optically induced topological phase transitions.

ABSTRACT: Explorations into the photonic analogs of topological materials have garnered significant research interest due to their application potential. Particularly in planar systems, the prospects of engendering extinguishable topological states can have wide-ranging implications. With an objective of employing these concepts for thermal emission engineering, here, we design and numerically investigate a quasi-monochromatic highly directional mid-infrared source elicited from inversion symmetry-protected topological interface states. Notably, by relying on the architecture of electro-optic effect-induced topological phase transitions, we introduce the possibility of ultrafast switching of thermal radiation. These reversible phase transitions, being free from carrier transport are inherently fast

SUBMITTER: Gupta NK 

PROVIDER: S-EPMC9072548 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature