High-harmonic generation from metasurfaces empowered by bound states in the continuum

Abstract

The concept of optical bound states in the continuum (BICs) underpins the existence of strongly localized waves embedded into the radiation spectrum that can enhance the electromagnetic fields in subwavelength photonic structures. Early studies of optical BICs in waveguides and photonic crystals uncovered their topological properties, and the concept of quasi-BIC metasurfaces facilitated applications of strong light-matter interactions to biosensing, lasing, and low-order nonlinear processes. Here we employ BIC-empowered dielectric metasurfaces to generate efficiently high optical harmonics up to the 11th order. We optimize a BIC mode for the first few harmonics and observe a transition between perturbative and nonperturbative nonlinear regimes. We also suggest a general strategy for designing subwavelength structures with strong resonances and nonperturbative nonlinearities. Our work bridges the fields of perturbative and nonperturbative nonlinear optics on the subwavelength scale.

References in corpus (4)

• Topological nature of bound states in the radiation continuum
• Attosecond XUV vortices from high-order harmonic generation
• Continuous wave second harmonic generation enabled by quasi-bound-states in the continuum on gallium phosphide metasurfaces
• Generation of even and odd high harmonics in resonant metasurfaces using single and multiple ultra-intense laser pulses

Cited by in corpus (31)

• Applications of Bound States in the Continuum in Photonics
• Strong light-matter interaction with self-hybridized bound states in the continuum in monolithic van der Waals metasurfaces
• Polarization-controlled dynamically switchable high-harmonic generation from all-dielectric metasurfaces governed by dual bound states in the continuum
• Resonant chiral effects in nonlinear dielectric metasurfaces
• Bound states in the continuum in photonic structures
• Nonlinear chiral metaphotonics
• High-efficiency optical frequency mixing in an all-dielectric metasurface enabled by multiple bound states in the continuum
• Topological metasurface: From passive toward active and beyond
• Enhanced third-harmonic generation empowered by doubly degenerate quasi-bound states in the continuum
• Enhanced sum-frequency generation from etchless lithium niobate empowered by dual quasi-bound states in the continuum
• Robust enhancement of high-harmonic generation from all-dielectric metasurfaces enabled by polarization-insensitive bound states in the continuum
• Efficient photon-pair generation empowered by dual quasi-bound states in the continuum
• Introducing a Symmetry-Breaking Coupler into a Dielectric Metasurface Enables Robust High-Q Quasibound States in the Continuum and Efficient Nonlinear Frequency Conversion
• Spectral tuning of high-harmonic generation with resonance-gradient metasurfaces
• Bound States in the Continuum in Multipolar Lattices
• Inverse Design of All-dielectric Metasurfaces with Bound States in the Continuum
• Enhanced second harmonic generation in high-$Q$ all-dielectric metasurfaces with backward frequency conversion
• Scattering matrix for chiral harmonic generation and frequency mixing in nonlinear metasurfaces
• High efficiency, high quality factor active membrane metasurfaces with extended Kerker effect
• Recovery of topologically robust merging bound states in the continuum in photonic structures with broken symmetry
• Topology with memory in nonlinear driven-dissipative photonic lattices
• Efficient high harmonic generation in nonlinear photonic moiré superlattice
• Inverse Design of Nonlinear Metasurfaces for Sum Frequency Generation
• Enhanced five-photon photoluminescence in subwavelength AlGaAs resonators
• Third-Order Spontaneous Parametric Down Conversion in Dielectric Nonlinear Resonant Metasurfaces
• Noncollinear phase-matching of high harmonic generation in solids
• Achiral nanostructures: perturbative harmonic generation and dichroism under vortex and vector beams illumination
• Nearfield Vortex Dynamics of Supercell Bloch Modes
• Ultrafast Coherent Bandgap Modulation Probed by Parametric Nonlinear Optics
• Light-cone-proximal quasi-BICs for chiral lasing at grazing angles
• Singular value decomposition to describe bound states in the continuum in periodic metasurfaces