Divya Hungund
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View article: Infrared Metaplasmonics
Infrared Metaplasmonics Open
Plasmonic response in metals, defined as the ability to support subwavelength confinement of surface plasmon modes, is typically limited to a narrow frequency range below the metals' plasma frequency. This places severe limitations on the …
View article: High-Q Ring Resonators in Low-Loss Monolithic Barium Titanate on Silicon
High-Q Ring Resonators in Low-Loss Monolithic Barium Titanate on Silicon Open
We investigate loss mechanisms in monolithic photonic structures fabricated from barium titanate grown epitaxially by RF-sputtering on silicon-on-insulator substrates. We characterize barium titanate waveguide loss using three photonic arc…
View article: Mid‐Infrared Perfect Absorption with Planar and Subwavelength‐Perforated Ultrathin Metal Films
Mid‐Infrared Perfect Absorption with Planar and Subwavelength‐Perforated Ultrathin Metal Films Open
A straightforward analytical approach is proposed for the design of minimally thin metal absorbers. Unlike traditional resonant design principles, where shape, size, and periodicity of a nanostructured film determine the absorption propert…