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Observation of a High-Energy Tamm Plasmon State in the Near-IR Region.

ABSTRACT: We report on the experimental observation of a Tamm plasmon state in the near-IR region characterized by an anomalously high energy level located in the upper half of the photonic band gap. Such a "blue" Tamm plasmon was demonstrated at the interface between a conventional, completely periodic Bragg reflector and a nanostructured nonresonant thin gold grating. We study the effect of the grating period on the characteristics of the anomalous state and show that the anomaly results from a nontrivial topology of the nanograting's optical near field, which cannot be captured by the effective medium approach and transfer matrix method commonly employed in the analysis of Tamm plasmons.

SUBMITTER: Buchnev O

PROVIDER: S-EPMC9096782 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature

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Observation of a High-Energy Tamm Plasmon State in the Near-IR Region.

Buchnev Oleksandr O Belosludtsev Alexandr A Fedotov Vassili A VA

ACS applied materials & interfaces 20220309 11

We report on the experimental observation of a Tamm plasmon state in the near-IR region characterized by an anomalously high energy level located in the upper half of the photonic band gap. Such a "blue" Tamm plasmon was demonstrated at the interface between a conventional, completely periodic Bragg reflector and a nanostructured nonresonant thin gold grating. We study the effect of the grating period on the characteristics of the anomalous state and show that the anomaly results from a nontrivi ...[more]

PMID: 35261229

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