Journal
PHYSICAL REVIEW RESEARCH
Volume 1, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevResearch.1.023016
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Funding
- Consiglio Nazionale delle Ricerche (CNR) joint laboratory projects 2019-2021
- RSF [18-72-10140]
- Strategic Fund of the Australian National University
- RFBR [19-0200419]
- Russian Federation [MK-403.2018.2]
- BASIS foundation
- Russian Science Foundation [18-72-10140] Funding Source: Russian Science Foundation
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Recent progress in nanoscale optics is driven by the physics of electric and magnetic resonances supported by high-index dielectric nanoparticles. Here, we exploit optical bound states in the continuum in a subwavelength particle enhanced by an engineered substrate undergoing an epsilon-near-zero transition from an insulator to a conductor, and uncover how to boost dramatically high-order parametric nonlinear effects. Our strategy makes feasible an observation of a variety of multistep cascaded and multifrequency nonlinear effects in an individual subwavelength resonator. This would expand substantially the range of applications of Mie-resonant dielectric metaphotonics for highly efficient subwavelength optical circuitry, nonlinear metadevices, ultrasensitive hyperspectral sensing, and quantum nanophotonics.
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