Optical Kerr nonlinearity of dielectric nanohole array metasurface in proximity to anapole state

Abstract

Metasurfaces have attracted a great deal of attention from researchers due to their prominent optical properties. In particular, metasurfaces may consist of structures possessing optical anapole resonances with strong field confinement and substantially suppressed scattering. As a result, such nanostructures display enhanced nonlinear optical properties. In this paper by means of three-dimensional finite-difference time-domain simulations, the ability of anapole modes in high-index dielectric metasurfaces with circular nanopores is shown. In the vicinity of the anapole state, the effective optical Kerr nonlinearity increases by orders of magnitude. Simultaneously, the optical transmission of the metasurface can reach high values up to unity.

6 pages; 17 figures

References in corpus (2)

• MENP: An Open-Source MATLAB Implementation of Multipole Expansion for Applications in Nanophotonics
• Disorder-immune metasurfaces with constituents exhibiting the anapole mode

Cited by in corpus (4)

• Enhancing Faraday and Kerr rotations based on toroidal dipole mode in an all-dielectric magneto-optical metasurface
• Optical Kerr nonlinearity of dielectric nanohole array metasurfaces with different hole shapes near the anapole state
• Possibility of anapole state in dielectric nanohole array metasurfaces with different hole shapes
• On the optical field confinement at the anapole mode in nanohole silicon metasurfaces