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Origin of an Anticrossing between a Leaky Photonic Mode and an Epsilon-Near-Zero Point of Silver.

ABSTRACT: Strong light-matter coupling hybridizes light and matter to form states known as polaritons, which give rise to a characteristic anticrossing signature in dispersion plots. Here, we identify conditions under which an anticrossing can occur in the absence of strong coupling. We study planar silver/dielectric structures and find that, around the epsilon-near-zero point in silver, the impedance matching between the silver and dielectric layers gives rise to an anticrossing. Our work shows that care must be taken to ensure that anticrossing arising from impedance matching is not misattributed to strong coupling.

SUBMITTER: Tan WJ

PROVIDER: S-EPMC9677423 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature

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Origin of an Anticrossing between a Leaky Photonic Mode and an Epsilon-Near-Zero Point of Silver.

Tan Wai Jue WJ Thomas Philip A PA Barnes William L WL

The journal of physical chemistry. C, Nanomaterials and interfaces 20221103 45

Strong light-matter coupling hybridizes light and matter to form states known as polaritons, which give rise to a characteristic anticrossing signature in dispersion plots. Here, we identify conditions under which an anticrossing can occur in the absence of strong coupling. We study planar silver/dielectric structures and find that, around the epsilon-near-zero point in silver, the impedance matching between the silver and dielectric layers gives rise to an anticrossing. Our work shows that care ...[more]

PMID: 36425000

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