Chiral and nonlinear resonant metaphotonics

Yuri S. Kivshar

doi:10.1117/12.3000833

13 March 2024 Chiral and nonlinear resonant metaphotonics

Yuri S. Kivshar

Proceedings Volume PC12897, High Contrast Metastructures XIII; PC1289702 (2024) https://doi.org/10.1117/12.3000833
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

I review the recent trends chiral metaphotonics underpinned by the physics of Mie resonances in high-index dielectric nanoparticles. More specifically, I discuss linear and nonlinear circular dichroism of dielectric resonant metasurfaces. We predict and demonstrate experimentally the enhancement of circular dichroism for normal propagation of light due to the excitation of multipolar Mie-type modes in silicon resonators and the formation of a complex vectorial field structure. High-quality Mie resonances satisfying optimal coupling condition can lead to giant circular dichroism in the nonlinear regime observed for the generation of the third-harmonic signal by normally propagating circularly polarized fundamental frequency fields.

Conference Presentation

Citation Download Citation

Yuri S. Kivshar "Chiral and nonlinear resonant metaphotonics", Proc. SPIE PC12897, High Contrast Metastructures XIII, PC1289702 (13 March 2024); https://doi.org/10.1117/12.3000833

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