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![(a) The heterostructure of graphene/α-MoO3 deposited upon silicon substrate and the hybrid plasmon-phonon polariton modes propagation at the surface. Inset illustrates the crystal orientation of α-MoO3 and the angle between plane of propagation of light and principal x ([100]) axis of α-MoO3. (b) The quantum interference as a function of frequency at different chemical potentials of graphene. The distance of electric dipole from the surface of the heterostructure is taken to be z0 = 50 nm. The thickness of α-MoO3 film is 50 nm. Reproduced with permission from ref. 45. Copyright 2022, De Gruyter.](publication/364689904/figure/fig6/AS:11431281091930569@1666668854503/a-The-heterostructure-of-graphene-a-MoO3-deposited-upon-silicon-substrate-and-the.png)
(a) The heterostructure of graphene/α-MoO3 deposited upon silicon substrate and the hybrid plasmon-phonon polariton modes propagation at the surface. Inset illustrates the crystal orientation of α-MoO3 and the angle between plane of propagation of light and principal x ([100]) axis of α-MoO3. (b) The quantum interference as a function of frequency at different chemical potentials of graphene. The distance of electric dipole from the surface of the heterostructure is taken to be z0 = 50 nm. The thickness of α-MoO3 film is 50 nm. Reproduced with permission from ref. 45. Copyright 2022, De Gruyter.
Source publication
Natural hyperbolic materials (HMs) in two dimensions (2D) have an extraordinarily high anisotropy and a hyperbolic dispersion relation. Some of them can even sustain hyperbolic polaritons with great directional propagation and light compression to deeply sub-wavelength scales due to their inherent anisotropy. Herein, the anisotropic optical feature...
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