Observation of canalized phonon polaritons in a single-layer α-MoO3 flake
Kai Wang,
Kun Wang,
Hua Long
et al.
Abstract:The canalization effect of phonon polaritons (PhPs) shows highly directional, and diffraction-less propagation characteristics in van der Waals (vdW) materials, offering new opportunities to mold the light flow at nanoscale for near-field energy, information and thermal managements. Previously, canalized PhPs have only been experimentally realized in the hexagonal boron nitride metasurface, heterostructures of twisted α-phase molybdenum trioxide (α-MoO3) crystal flakes or the hybridized system. However, these … Show more
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