Light guiding above the light line in arrays of dielectric nanospheres

Abstract

We consider light propagation above the light line in arrays of spherical dielectric nanoparticles. It is demonstrated numerically that quasi-bound leaky modes of the array can propagate both stationary waves and light pulses to a distance of hundreds wavelengths at the frequencies close to the bound states in the radiation continuum. A semi-analytical estimate for decay rates of the guided waves is found to match the numerical data to a good accuracy.

References in corpus (8)

• Topological nature of bound states in the radiation continuum
• Theory of Linear Chains of Metamaterial/Plasmonic Particles as Sub-Diffraction Optical Nanotransmission Lines
• Bloch bound states in the radiation continuum in a periodic array of dielectric rods
• Electromagnetic bound states in the radiation continuum for periodic double arrays of subwavelength dielectric cylinders
• Light trapping above the light cone in one-dimensional array of dielectric spheres
• Numerical methods for calculating poles of the scattering matrix with applications in grating theory
• Resonant transmission of light in arrays of high-index dielectric nanoparticles
• Light Propagation in Linear Arrays of Spherical Particles

Cited by in corpus (11)

• Experimental observation of symmetry protected bound state in the continuum in a chain of dielectric disks
• Light trapping above the light cone in one-dimensional array of dielectric spheres
• Observation of an accidental bound state in the continuum in a chain of dielectric disks
• Propagating bound states in the continuum in dielectric gratings
• Light enhancement by quasi-bound states in the continuum in dielectric arrays
• Bound states in the continuum with high orbital angular momentum in a dielectric rod with periodically modulated permittivity
• Bound States in the Continuum on Periodic Structures: Perturbation Theory and Robustness
• Bound states in the continuum on periodic structures surrounded by strong resonances
• Optical response induced by bound states in the continuum in arrays of dielectric spheres
• Fibers based on propagating bound states in the continuum
• Photonic integrated circuits in the continuum