Anisotropy-induced photonic bound states in the continuum

Abstract

Bound states in the continuum (BICs) are radiationless localized states embedded in the part of the parameter space that otherwise corresponds to radiative modes. Many decades after their original prediction and early observations in acoustic systems, such states have been demonstrated recently in photonic structures with engineered geometries. Here, we put forward a mechanism, based on waveguiding structures that contain anisotropic birefringent materials, that affords the existence of BICs with fundamentally new properties. In particular, anisotropy-induced BICs may exist in symmetric as well as in asymmetric geometries; they form in tunable angular propagation directions; their polarization may be pure transverse electric, pure transverse magnetic or full vector with tunable polarization hybridity; and they may be the only possible bound states of properly designed structures, and thus appear as a discrete, isolated bound state embedded in a whole sea of radiative states.

arXiv comment15 pages, 3 figures

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Cited by in corpus (54)

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• Observation of optical vortices in momentum space
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• Controlling phonons and photons at the wavelength-scale: silicon photonics meets silicon phononics
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• Extreme Huygens' metasurfaces based on quasi-bound states in the continuum
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• Band flips and bound-state transitions in leaky-mode photonic lattices
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• Metasurface-mediated anisotropic radiative heat transfer between nanoparticles
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• Quasi-bound states in the continuum induced by $\mathcal{P}\mathcal{T}$-symmetry breaking
• Polarized bound state in the continuum and resonances with tunable Q-factor in an anisotropic photonic crystal
• Observation of bound states in the continuum embedded in symmetry bandgaps
• Surface Dyakonov-Cherenkov Radiation
• Embedded Scattering Eigenstates Using Resonant Metasurfaces
• Spin-Orbit-Locking Chiral Bound States in the Continuum
• Topological properties of bound-states-in-the-continuum in geometries with broken anisotropy-symmetry
• Capturing Broadband Light in a Compact Bound State in the Continuum
• Coherent-perfect-absorber and laser for bound states in a continuum
• Angle-Resolved Thermal Emission Spectroscopy Characterization of Non-Hermitian Meta-Crystals
• Perturbation theories for symmetry-protected bound states in the continuum on two-dimensional periodic structures
• Fabry-Perot Bound States in the Continuum in an Anisotropic Photonic Crystal
• Angular Control of Anisotropy-Induced Bound States in the Continuum
• Bound states in the continuum in a two-dimensional PT-symmetric system
• Coexistence of Localized and Extended States in Disordered Systems
• Topological linelike bound states in the continuum
• Unidirectional guided resonances in anisotropic waveguides
• Bound States in the Continuum in Spin-Orbit Coupled Atomic Systems
• Bound states with complex frequencies near the continuum on lossy periodic structures
• Dirac Points Embedded in the Continuum
• Transition from Dirac points to exceptional points in anisotropic waveguides
• Parametric Dependence of Bound States in the Continuum on Periodic Structures
• Parametric dependence of bound states in the continuum in periodic structures: vectorial cases
• On the robustness of bound states in the continuum in waveguides with lateral leakage channels
• From zero transmission to trapped modes in waveguides
• Bound state in the continuum in an anisotropic photonic crystal supported by full-wave phase plate
• Anisotropy-induced Extrinsic Chirality and Chiral Discrimination of Surface Plasmon Polaritons
• Topological Floquet bound states in the continuum
• Deployable Nanoelectromechanical Bound States in the Continuum Enabled by GHz Lamb Wave Phononic Crystals on LiNbO3 Thin Films
• Meta-optics and bound states in the continuum
• Bound states in and out of the continuum in nanoribbons with wider sections: A novel recursive S-matrix method
• Solitary Spectrally-Discrete Bound States in the Continuum in an Open System
• Electrically Switchable Broadband Photonic Bound States in the Continuum
• Frequency perturbation theory of bound states in the continuum in a periodic waveguide
• Robust Topological Bound States in the Continuum in a Quantum Hall Bar with an Anti-dot
• Photonic integrated circuits in the continuum
• Surface Bound States in the Continuum in Dyakonov Structures