Gate tunable light–matter interaction in natural biaxial hyperbolic van der Waals heterostructures

  title={Gate tunable light–matter interaction in natural biaxial hyperbolic van der Waals heterostructures},
  author={Aneesh Bapat and Saurabh Dixit and Yashika Gupta and Anshuman Kumar},
  pages={2329 - 2340}
Abstract The recent discovery of natural biaxial hyperbolicity in van der Waals crystals, such as α-MoO3, has opened up new avenues for mid-IR nanophotonics due to their deep subwavelength phonon polaritons. However, a significant challenge is the lack of active tunability of these hyperbolic phonon polaritons. In this work, we investigate heterostructures of graphene and α-MoO3 for actively tunable hybrid plasmon phonon polariton modes via electrostatic gating in the mid-infrared spectral… 

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