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Showing 1–6 of 6 results
Advanced filters: Author: Dmitry I. Yakubovsky Clear advanced filters

  • Two-dimensional materials look poised to revolutionize information and communication technologies. Here, the authors leveraged spatially resolved ellipsometry to engineer the optical absorption of graphene on hexagonal boron nitride substrates, thereby disclosing effective solutions for flexible optoelectronics.

    • Adilet N. Toksumakov
    • Georgy A. Ermolaev
    • Davit A. Ghazaryan
    ResearchOpen Access
    Communications Physics
    Volume: 6, P: 1-6

  • Principal optical axes define light-matter interactions in crystals and they are usually assumed to be stationary. Here, the authors report the observation of wavelength-dependent principal optical axes in ternary van der Waals crystals (ReS2 and ReSe2), leading to wavelength-switchable propagation directions of their waveguide modes.

    • Georgy A. Ermolaev
    • Kirill V. Voronin
    • Kostya S. Novoselov
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-8

  • The authors combine films of two-dimensional semiconductors, which exhibit excitonic spectral features, with SiO2/Si Fabry-Perot resonators in order to realize topological phase singularities in reflection. Around these singularities, the reflection spectra demonstrate rapid phase changes while the structure behaves as a perfect absorber.

    • Georgy Ermolaev
    • Kirill Voronin
    • Valentyn Volkov
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-9