Spectrally selective metasurfaces based on bound states in the continuum: a versatile platform for enhanced light-matter coupling

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• Andreas Tittl (Ludwig-Maximilians-University Munich)
• Thursday 23 February 2023, 13:00-14:00
• Poynting Small Lecture Theatre (S06).

If you have a question about this talk, please contact Dr Miguel Navarro-Cia.

Metasurfaces composed of sub-wavelength dielectric resonators are a powerful platform for controlling light on the nanoscale, providing significant advantages over their plasmonic counterparts. Combining them with the emerging physical concept of bound states in the continuum (BICs) has enabled the realization of metasurfaces with ultra-narrow line widths and therefore unprecedented spectral control over the nanophotonic enhancement. In my talk, I will introduce several examples of such spectrally selective metasurfaces and show how they can be used to open new perspectives both for fundamental light-matter coupling physics and for practical meta-device applications ranging from biodetection to van der Waals materials. Specifically, I will focus on the use of BIC -driven systems for the development of compact biospectroscopy devices with a vision towards point-of-care diagnostics and new concepts for strong light-matter coupling in polaritonic systems.

This talk is part of the Metamaterials Research Group Seminars series.

This talk is included in these lists:

• Bham Talks
• Metamaterials Research Group Seminars
• Poynting Small Lecture Theatre (S06)
• What's on in Physics?

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