The Optical Properties and Plasmonics of Anisotropic 2-Dimensional Materials

Abstract

In the fast growing two-dimensional (2D) materials family, anisotropic 2D materials, with their intrinsic in-plane anisotropy, exhibit a great potential in optoelectronics. One such typical material is black phosphorus (BP), with a layer-dependent and highly tunable band gap. Such intrinsic anisotropy adds a new degree of freedom to the excitation, detection and control of light. Particularly, hyperbolic plasmons with hyperbolic q-space dispersion are predicted to exist in BP films, where highly directional propagating polaritons with divergent densities of states are hosted. Combined with a tunable electronic structure, such natural hyperbolic surfaces may enable a series of exotic applications in nanophotonics. In this review, the anisotropic optical properties and plasmons (especially hyperbolic plasmons) of BP are discussed. In addition, other possible 2D material candidates (especially anisotropic layered semimetals) for hyperbolic plasmons are examined. This review may stimulate further research interest in anisotropic 2D materials and fully unleash their potential in flatland photonics.

arXiv comment60 pages,10 figures

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Cited by in corpus (16)

• Anisotropic effects in two-dimensional materials
• Two-dimensional natural hyperbolic materials: From polaritons modulation to applications
• Anisotropic properties of monolayer 2D materials: an overview from the C2DB database
• Tunable Low-Loss Hyperbolic Plasmon Polaritons in a T${}_d$-WTe${}_2$ Single Layer
• Twisted two-dimensional material stacks for polarization optics
• Tunable plasmons in large area WTe2 thin films
• Multiple Tunable Hyperbolic Resonances in Broadband Infrared Carbon-Nanotube Metamaterials
• Imaging Anisotropic Waveguide Exciton Polaritons in Tin Sulfide
• Giant Transport Anisotropy in ReS${}_2$ Revealed via Nanoscale Conducting Path Control
• Plasmons in anisotropic Dirac systems
• Engineering quantum interference in van der Waals heterostructures
• Mini Band Gap Generation in Magnetic Beta-Borophene: Effects of Optical Phonon Interaction
• Twist-angle and thickness-ratio tuning of plasmon polaritons in twisted bilayer van der Waals films
• Excitons in twisted AA' hexagonal boron nitride bilayers
• Thermal difference reflectivity of tilted 2D Dirac materials
• Stacked polarimeters with twisted black phosphorus