Switchable strong coupling between dual hyperbolic phonon polaritons and photons in hybrid structure of metasurfaces and h-BN slab

We propose an all-dielectric hybrid structure combined with hexagonal boron nitride slab and strontium titanate (STO) metasurfaces to excite dual hyperbolic phonon polaritons (HPhPs) and an additional optical (TO) phonon, and achieve their strong coupling with photons. The metasurfaces, supporting t...

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Bibliographic Details
Published inNew journal of physics Vol. 24; no. 11; pp. 113011 - 113019
Main Authors Li, Meiqi, Ma, Qichang, Luo, Aiping, Hong, Weiyi
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.11.2022
Subjects
Biosensors
Boron nitride
Composite materials
Coupling
Electric fields
h-BN slab
Hybrid structures
hyperbolic phonon polaritons
Laboratories
Metasurfaces
Phonons
Photons
Physics
Polaritons
Strontium titanates
switchable strong coupling of multi-modes
Temperature
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Summary:We propose an all-dielectric hybrid structure combined with hexagonal boron nitride slab and strontium titanate (STO) metasurfaces to excite dual hyperbolic phonon polaritons (HPhPs) and an additional optical (TO) phonon, and achieve their strong coupling with photons. The metasurfaces, supporting tunable guided-mode resonance via adjusting the external temperature, consists of STO two-dimensional grating and STO layer. Thus, the strong coupling can be switched and tuned actively between the dual HPhPs and TO phonon via adjusting the external temperature of metasurfaces. This work has numerous potential applications on multi-channel biosensors, filters and tunable source and detectors.
Bibliography:NJP-115185.R1
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ISSN:1367-2630
1367-2630
DOI:10.1088/1367-2630/ac9e6e