Giant Third-Harmonic Dichroism Driven by Quasi-BIC in Chiral All-Dielectric Metasurfaces

M. Gandolfi; M. Gandolfi; A. Tognazzi; A. Tognazzi; D. Rocco; D. Rocco; C. De Angelis; C. De Angelis; L. Carletti; L. Carletti

doi:10.1364/NOMA.2021.NoTu3D.5

OSA Advanced Photonics Congress 2021
OSA Technical Digest (Optica Publishing Group, 2021),
paper NoTu3D.5
•https://doi.org/10.1364/NOMA.2021.NoTu3D.5

Giant Third-Harmonic Dichroism Driven by Quasi-BIC in Chiral All-Dielectric Metasurfaces

M. Gandolfi, A. Tognazzi, D. Rocco, C. De Angelis, and L. Carletti

Novel Optical Materials and Applications 2021

Washington, DC United States
26–29 July 2021
ISBN: 978-1-943580-94-1

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M. Gandolfi, A. Tognazzi, D. Rocco, C. De Angelis, and L. Carletti, "Giant Third-Harmonic Dichroism Driven by Quasi-BIC in Chiral All-Dielectric Metasurfaces," in OSA Advanced Photonics Congress 2021, B. Yang, F. Leo, A. Tauke-Pedretti, S. Arafin, M. Clerici, L. Caspani, L. Busse, M. Kats, J. Fan, W. Ming (Steve) Lee, D. Caplan, N. Parsons, W. Freude, C. Tremblay, D. Hillerkuss, K. Igarashi, H. Elgala, N. Guerrero Gonzalez, R. "Patty" Stabile, K. Jaeger, R. Saive, H. Aziz, and H. Tan, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper NoTu3D.5.

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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. Tuning mode interference allows selective linear and nonlinear circular dichroism.

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