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Conferences > CLEO_QELS > 2021 > FM3I > FM3I.4

Enhanced third-harmonic dichroism in chiral all-dielectric metasurfaces driven by quasi-BIC

Marco Gandolfi, Andrea Tognazzi, Davide Rocco, Luca Carletti, and Costantino De Angelis

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Abstract

We develop a new approach based on quasi-BICs to develop chiral metasurfaces exhibiting nonlinear circular dichroism (up to 99.9%) and high conversion efficiency (10−2 W−2). Tuning mode interference allows selective linear and nonlinear circular dichroism.

© 2021 The Author(s)

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All-dielectric metasurface with enhanced third-harmonic dichroism driven by quasi-BIC

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