Desktop laboratory of bound states in the continuum in metallic waveguide with dielectric cavities

Abstract

We consider dielectric cavities whose radiation space is restricted by two parallel metallic planes. The TM solutions of the Maxwell equations of the system are equivalent to the solutions of periodical arrays of dielectric cavities. The system readily allows to achieve bound states in the continuum (BICs) of any type including topological BICs as dependent on position and orientation of the cavities relative to the planes. That extremely facilitates experimental studies in comparison to infinite arrays of the cavities. We show the effect of merging of topologically protected BICs that pushes the square asymptotic of the $Q$-factor into the power degree 4 or even 6.

References in corpus (25)

• Topological nature of bound states in the radiation continuum
• Topologically Enabled Ultra-high-Q Guided Resonances Robust to Out-of-plane Scattering
• High-Q supercavity modes in subwavelength dielectric resonators
• Nonradiating Photonics with Resonant Dielectric Nanostructures
• Circularly polarized states spawning from bound states in the continuum
• Bound states in the continuum and Fano resonances in the strong mode coupling regime
• Analytical Perspective for Photonic Bound States in the Continuum in Photonic Crystal Slabs
• Interference traps waves in open system: Bound states in the continuum
• Generation and Annihilation of Topologically-Protected Bound States in the Continuum and Circularly-Polarized States by Symmetry Breaking
• Bloch bound states in the radiation continuum in a periodic array of dielectric rods
• Pushing the Limit of High-Q Mode of a Single Subwavelength Dielectric Nanocavity
• Experimental observation of symmetry protected bound state in the continuum in a chain of dielectric disks
• Formation Mechanism of Guided Resonances and Bound States in the Continuum in Photonic Crystal Slabs
• Band flips and bound-state transitions in leaky-mode photonic lattices
• Observation of supercavity modes in subwavelength dielectric resonators
• Electromagnetic bound states in the radiation continuum for periodic double arrays of subwavelength dielectric cylinders
• Observation of an accidental bound state in the continuum in a chain of dielectric disks
• Light enhancement by quasi-bound states in the continuum in dielectric arrays
• Bound States in the Continuum on Periodic Structures: Perturbation Theory and Robustness
• Topological properties of bound-states-in-the-continuum in geometries with broken anisotropy-symmetry
• Bound states in the continuum on periodic structures surrounded by strong resonances
• $\omega -k_x$ Fano line shape in photonic crystal slabs
• Resonant field enhancement near bound states in the continuum on periodic structures
• Bound states with complex frequencies near the continuum on lossy periodic structures
• Evolution of the resonances of two parallel dielectric cylinders with distance between them

Cited by in corpus (1)

• Fabry-Perot Bound States in the Continuum in an Anisotropic Photonic Crystal