Optical bistability with bound states in the continuum in dielectric gratings

Abstract

We consider light scattering by dielectric gratings supporting optical bound states in the continuum. Due to the presence of instantaneous Kerr nonlinearity the critical field enhancement in the spectral vicinity of the bound state triggers the effect of optical bistability. The onset of bistability is explained theoretically in the framework of the temporal coupled mode theory. As the central result we cast the problem into the form of a singly field-driven nonlinear oscillator. The theoretical results are verified in comparison against full-wave numerical simulations.

References in corpus (3)

• High-Q supercavity modes in subwavelength dielectric resonators
• Perfect Single-Sided Radiation and Absorption without Mirrors
• Coupled-wave formalism for bound states in the continuum in guided-mode resonant gratings

Cited by in corpus (4)

• Bound states in the continuum in photonic structures
• Enhancing Goos-Hänchen shift based on magnetic dipole quasi-bound states in the continuum in all-dielectric metasurfaces
• Thermo-optic hysteresis with bound states in the continuum
• Singular value decomposition to describe bound states in the continuum in periodic metasurfaces