Greatly Enhanced Radiative Transfer Enabled by Hyperbolic Phonon Polaritons in α‐MoO3
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202403719
Abstract: Orthorhombic molybdenum trioxide (α‐MoO3) is a highly anisotropic hyperbolic material in nature. Within its wide Reststrahlen bands, α‐MoO3 has hyperboloidal dispersion that supports bulk propagation of high‐k phonon polariton modes. These modes can serve as… read more here.
Keywords: radiative transfer; phonon polaritons; polaritons moo3; hyperbolic phonon ... See more keywords
Controlling and Focusing in-plane Hyperbolic Phonon Polaritons in α-MoO3 with A Curved Plasmonic Antenna.
Sign Up to like & getrecommendations! Published in 2021 at "Advanced materials"
DOI: 10.1002/adma.202104164
Abstract: Hyperbolic phonon polaritons (HPhPs) sustained in polar van der Waals (vdW) crystals exhibit extraordinary confinement of long-wave electromagnetic fields to the deep subwavelength scale. In stark contrast to uniaxial vdW hyperbolic materials, recently emerged biaxial… read more here.
Keywords: phonon polaritons; plane hyperbolic; hyperbolic phonon; controlling focusing ... See more keywords
Excitation and Manipulation of In-Plane Hyperbolic Phonon Polaritons in α-MoO3 Flakes via Plasmonic Antennas.
Sign Up to like & getrecommendations! Published in 2025 at "Nano letters"
DOI: 10.1021/acs.nanolett.5c02388
Abstract: Hyperbolic phonon polaritons (HPhPs) in polar van der Waals crystals, such as α-MoO3 and α-V2O5, enable deep subwavelength light confinement and in-plane manipulation via hyperbolic dispersion, yet momentum mismatch hinders efficient excitation. We present a… read more here.
Keywords: phonon polaritons; plane; plasmonic antennas; hyperbolic phonon ... See more keywords
A graphene Zener–Klein transistor cooled by a hyperbolic substrate
Sign Up to like & getrecommendations! Published in 2017 at "Nature Nanotechnology"
DOI: 10.1038/s41565-017-0007-9
Abstract: The engineering of cooling mechanisms is a bottleneck in nanoelectronics. Thermal exchanges in diffusive graphene are mostly driven by defect-assisted acoustic phonon scattering, but the case of high-mobility graphene on hexagonal boron nitride (hBN) is… read more here.
Keywords: zener klein; graphene; hyperbolic phonon; nanotechnology ... See more keywords
Out-of-plane heat transfer in van der Waals stacks through electron–hyperbolic phonon coupling
Sign Up to like & getrecommendations! Published in 2017 at "Nature Nanotechnology"
DOI: 10.1038/s41565-017-0008-8
Abstract: Van der Waals heterostructures have emerged as promising building blocks that offer access to new physics, novel device functionalities and superior electrical and optoelectronic properties1–7. Applications such as thermal management, photodetection, light emission, data communication,… read more here.
Keywords: hyperbolic phonon; van der; der waals; transfer ... See more keywords
Resonance perfect absorption by exciting hyperbolic phonon polaritons in 1D hBN gratings.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.007791
Abstract: Natural materials with hyperbolic responses can confine light with well-defined propagation directions inside the micro/nanostructure. Here we theoretically demonstrate that strong resonance absorption can be achieved in one-dimensional gratings made of hexagonal boron nitride (hBN)… read more here.
Keywords: absorption; resonance perfect; phonon polaritons; resonance ... See more keywords
Isotopic effects on in-plane hyperbolic phonon polaritons in MoO3
Sign Up to like & getrecommendations! Published in 2024 at "Nanophotonics"
DOI: 10.1515/nanoph-2023-0717
Abstract: Abstract Hyperbolic phonon polaritons (HPhPs), hybrids of light and lattice vibrations in polar dielectric crystals, empower nanophotonic applications by enabling the confinement and manipulation of light at the nanoscale. Molybdenum trioxide (α-MoO3) is a naturally… read more here.
Keywords: phonon; phonon polaritons; isotopic effects; isotopic enrichment ... See more keywords
Magnetical Manipulation of Hyperbolic Phonon Polaritons in Twisted Double-Layers of Molybdenum Trioxide
Sign Up to like & getrecommendations! Published in 2023 at "Micromachines"
DOI: 10.3390/mi14030648
Abstract: Controlling the twist angle between double stacked van der Waals (vdW) crystals holds great promise for nanoscale light compression and manipulation in the mid-infrared (MIR) range. A lithography-free geometry has been proposed to mediate the… read more here.
Keywords: double layers; hyperbolic phonon; magnetical manipulation; phonon polaritons ... See more keywords