prof. RNDr. Jiří Petráček, Dr.
E-mail:   petracek@fme.vutbr.cz 
WWW:   https://physics.fme.vutbr.cz/~jirka/
Dept.:   Institute of Physical Engineering
Dept. of Optics and Precise Mechanics
Position:   Professor
Room:   A2/208

Scientific activities

  • modelling of wave propagation in photonic devices
  • nonlinear optics

Supervised courses:

Publications:

  • PETRÁČEK, J.; KUZMIAK, V.:
    Transverse Anderson localization of channel plasmon polaritons
    journal article in Web of Science
  • PETRÁČEK, J.; EKSIOGLU ÖZOK, Y.; STERKHOVA, A.:
    Simulation of self-pulsing in Kerr-nonlinear coupled ring resonators, Elsevier
    journal article in Web of Science
  • PETRÁČEK, J.:
    A bidirectional eigenmode expansion and propagation technique for modeling Kerr-nonlinear photonic structures,
    Microwave and Optical Technology Letters, Vol.55, (2013), No.11, pp.2628-2631, ISSN 0895-2477, Wiley
    journal article - other
  • PETRÁČEK, J.:
    Nonlinear directional coupling between plasmonic slot waveguides,
    APPLIED PHYSICS B-LASERS AND OPTICS, Vol.112, (2013), No.4, pp.593-598, ISSN 0946-2171
    journal article - other
  • MAES, B.; PETRÁČEK, J.; BURGER, S.; KWIECIEN, P.; LUKSCH, J.; RICHTER, I.:
    Simulations of high-Q optical nanocavities with a gradual 1D bandgap,
    OPTICS EXPRESS, Vol.21, (2013), No.6, pp.6794-6806, ISSN 1094-4087
    journal article - other
  • PETRÁČEK, J.; STERKHOVA, A.; LUKSCH, J.:
    Numerical scheme for simulation of self-pulsing and chaos in coupled microring resonators,
    Microwave and Optical Technology Letters, Vol.53, (2011), No.10, pp.2238-2242, ISSN 0895-2477, Wiley Periodicals, Inc.
    journal article - other

List of publications at Portal BUT

Abstracts of most important papers:

  • MAES, B.; PETRÁČEK, J.; BURGER, S.; KWIECIEN, P.; LUKSCH, J.; RICHTER, I.:
    Simulations of high-Q optical nanocavities with a gradual 1D bandgap,
    OPTICS EXPRESS, Vol.21, (2013), No.6, pp.6794-6806, ISSN 1094-4087
    journal article - other
    High-quality cavities in hybrid material systems have various interesting applications. We perform a comprehensive modeling comparison on such a design, where confinement in the III-V material is provided by gradual photonic crystal tuning, a recently proposed method offering strong resonances. The III-V cavity couples to an underlying silicon waveguide. We report on the device properties using four simulation methods: finite-difference time-domain (FDTD), finite-element method (FEM), bidirectional eigenmode propagation (BEP) and aperiodic rigorous coupled wave analysis (aRCWA). We explain the major confinement and coupling effects, consistent with the simulation results. E.g. for strong waveguide coupling, we find quantitative discrepancies between the methods, which establishes the proposed high-index-contrast, lossy, 3D structure as a challenging modeling benchmark.
  • MORICHETTI, F.; MELLONI, A.; ČÁP, J.; PETRÁČEK, J.; BIENSTMAN, P.; PRIEM, G.; MAES, B.; LAURITANO, M.; BELLANCA, G.:
    Self-phase modulation in slow-wave structures: A comparative numerical analysis,
    Optical and Quantum Electronics, Vol.38, (2007), No.9-11, pp.761-780, ISSN 0306-8919
    journal article - other
    Self-phase modulation effects in 1D optical Slow-Wave Structures made of Fabry-Perot cavities coupled by Distributed Bragg Refectors are discussed. The nonlinear response of the structure is investigated by a comparative analysis of several numerical methods operating either in time or frequency-domain.
  • PETRÁČEK, J., SINGH, K.:
    Determination of Leaky Modes in Planar Multilayer Waveguides,
    Photonics Technology Letters, Vol.2002, (2002), No.14, pp.810-1621, ISSN 1041-1135
    journal article - other
    We present rigorous yet simple technique for the determination of leaky modes in planar multilayer waveguides. The technique uses dispersion equation provided by the thin-film transfer matrix method. Complex roots, that correspond to leaky modes, are searched on the basis of smooth transition between bound modes of closed waveguide and leaky modes of open waveguide.
  • ČTYROKÝ, J.; HELFERT, S.; PREGLA, R.; BIENSTMAN, P.; BAETS, R.; RIDDER, R.; STOFFER, R.; KLAASSE, G.; PETRÁČEK, J.; LALANNE, P.; HUGONIN, J.; DE LA RUE, R.:
    Bragg waveguide grating as a 1D photonic bandgap structure: COST 268 modelling task,
    Optical and Quantum Electronics, Vol.34, (2002), No.5/6, pp.455-924, ISSN 0306-8919
    journal article - other
    Modal reflection, transmission and loss of deeply etched Bragg waveguide gratings were modelled by six European laboratories using independently developed 2D numerical codes based on four different methods, with very good mutual agreement. It was found that (rather weak) material dispersion of the SiO2/Si3N4 system does not significantly affect the results. The existence of lossless Floquet-Bloch modes in deeply etched gratings was confirmed. Based on reliable numerical results, the physical origin of out-of-plane losses of 1D or 2D photonic bandgap structures in slab waveguides is briefly discussed.
  • SELLERI, S., PETRÁČEK, J.:
    Modal analysis of rib waveguide through finite element and mode matching methods,
    Optical and Quantum Electronics, Vol.2001, (2001), No.33, pp.373-386, ISSN 0306-8919
    journal article - other
    Two mode solvers based on the finite element and the mode matching methods are compared by way of analysing rib waveguide. Differences between the normalized propagation constants provided by the two methods are always less than 0.0001 which is at least about one order of magnitude smaller than previously reported values. Results for lossy waveguides and field comparison are also presented.