Third-harmonic light polarization control in magnetically-resonant silicon metasurfaces

Abstract

Nonlinear metasurfaces have become prominent tools for controlling and engineering light at the nanoscale. Usually, the polarization of the total generated third harmonic is studied. However, diffraction orders may present different polarizations. Here, we design an high quality factor silicon metasurface for third harmonic generation and perform back focal plane imaging of the diffraction orders, which present a rich variety of polarization states. Our results demonstrate the possibility of tailoring the polarization of the generated nonlinear diffraction orders paving the way to a higher degree of wavefront control.

References in corpus (5)

• Non-Trivial Non-Radiating Excitation as a Mechanism of Resonant Transparency in Toroidal Metamaterials
• An optical metamixer
• Nonlinear imaging with all-dielectric metasurfaces
• Multipolar third-harmonic generation driven by optically-induced magnetic resonances
• Ultrafast cryptography with indefinitely switchable optical nanoantennas

Cited by in corpus (2)

• Efficient frequency conversion with geometric phase control in optical metasurfaces
• Near-field Hyperspectral Imaging of Resonant Mie Modes in a Dielectric Island