Browsing Ústav fyzikálního inženýrství by Author "Petráček, Jiří"

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  • Photonic integrated circuits with bound states in the continuum: comment 

    Čtyroký, Jiří; Petráček, Jiří (Optica Publishing Group, 2022-06-21)
    We point out that the electro-optic modulation of the bound state in the continuum in a low-index dielectric-loaded slab LiNbO3 waveguide reported by Yu et al., [Optica 6, 1342 (2019)] is treated incorrectly. According to ...

  • Silicon waveguides with graphene: coupling of waveguide mode to surface plasmons 

    Čtyroký, Jiří; Petráček, Jiří; Kuzmiak, Vladimír; Kwiecien, Pavel; Richter, Ivan (IOP Publishing, 2020-08-18)
    Silicon waveguides with graphene layers have been recently intensively studied for their potential as fast and low-power electro-optic modulators with small footprints. In this paper we show that in the optical wavelength ...