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.

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Cited by in corpus (6)

• Controlling light absorption of graphene at critical coupling through magnetic dipole quasi-bound states in the continuum resonance
• 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
• Excitation of a bound state in the continuum via spontaneous symmetry breaking
• Thermo-optic hysteresis with bound states in the continuum
• Singular value decomposition to describe bound states in the continuum in periodic metasurfaces