Breakdown of Polaritons in Nanophotonic Systems

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Breakdown of Polaritons in Nanophotonic Systems

Conference Paper (2021)

Author(s)

Shima Rajabali (ETH Zürich)

Erika Cortese (University of Southampton)

Mattias Beck (ETH Zürich)

Simone de Liberato (University of Southampton)

Jérôme Faist (ETH Zürich)

Giacomo Scalari (ETH Zürich)

Affiliation

External organisation

DOI related publication

https://doi.org/10.1109/IRMMW-THz50926.2021.9567340 Final published version

To reference this document use

https://resolver.tudelft.nl/uuid:20694666-4542-4ac5-8409-9cc1edb09ac7

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Publication Year

2021

Language

English

Affiliation

External organisation

Publisher

IEEE

ISBN (electronic)

9781728194240

Event

46th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2021 (2021-08-30 - 2021-09-03), Chengdu, China

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Abstract

We report a physical limit for reducing the modal volume of a cavity and ultimately increasing the light-matter coupling strength. Extremely confined photonic mode below a critical length-scale can introduce a large in-plane wave vector and excite a continuum of high momentum matter resonances. This excitations act as loss channels and reduce the field confinement by smearing the distribution of surface charges, thus consequently limiting the achievable field enhancement.