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Out-of-plane symmetry-protected bound states in the continuum
Publikationstyp
Conference Paper
Date Issued
2022
Sprache
English
Author(s)
Start Page
509
End Page
510
Citation
12th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META 2022
Contribution to Conference
Scopus ID
Symmetry-protected bound states in the continuum (BICs) combines high-quality factors (q-factors) with a large spectral tunability, offering an ideal platform for optical sensing. We present a plasmonic nanofin metasurface harnessing the out-of-plane symmetry breaking in parameter space by tuning the opening angle of 3D laser nanoprinted polymer triangles coated with gold. The plasmonic nature of the out-of-plane symmetry-protected BICs enables high surface field enhancement together with high q-factors, which have been utilised for refractive index and pixelated molecular sensing.
DDC Class
620: Engineering