prof. RNDr. Petr Dub, CSc.
E-mail:   dub@fme.vutbr.cz  WWW:   dub@fme.vutbr.cz Dept.:   Institute of Physical Engineering Dept. of Physics of Surfaces and Nanostructures Position:   Professor Room:   A1/1722

Supervised courses:

• Solid State Physics (DS139)
• Concepts in Solid State Theory (9TPL)
• Electrodynamics and Special Theory of Relativity (TDE)
• Quantum and Statistical Physics (TQS)
• Solid State Physics (TPL)
• Specialised Seminar (N-FIN) (TSN)
• Specialised Seminar (N-FIN) (TSN-A)
• Structure of Matter (9STH)

Publications:

• BŘÍNEK, L.; ÉDES, Z.; DVOŘÁK, P.; NEUMAN, T.; ŠAMOŘIL, T.; KALOUSEK, R.; DUB, P.; ŠIKOLA, T.:
  Interference povrchových plazmonů v blízkém poli,
  Československý časopis pro fyziku, Vol.63, (2013), No.4, pp.234-236, ISSN 0009-0700
  journal article - other
• DVOŘÁK, P.; NEUMAN, T.; BŘÍNEK, L.; ŠAMOŘIL, T.; KALOUSEK, R.; DUB, P.; VARGA, P.; ŠIKOLA, T.:
  Control and Near-Field Detection of Surface Plasmon Interference Patterns,
  NANO LETTERS, Vol.13, (2013), No.6, pp.2558-2563, ISSN 1530-6984
  journal article - other
• KALOUSEK, R.; DUB, P.; BŘÍNEK, L.; ŠIKOLA, T.:
  Response of plasmonic resonant nanorods: an analytical approach to optical antennas
  journal article in Web of Science
• DUB, P.; LITZMAN, O.:
  Multiple wave scattering on a bordered crystal. Translation symmetry breaking and forbidden reflections,
  Acta Crystallographica, Vol.68, (2012), No.4, pp.494-504, ISSN 0108-7673
  journal article - other
• DUB, P.; MUSILOVÁ, J.:
  (Eds.) Ernst Mach- Fyzika - Filosofie - Vzdělávání,
  ISBN 978-80-210-4808-9, (2010), Masarykova Universita
  book
• ČECHAL, J.; MATLOCHA, T.; POLČÁK, J.; KOLÍBAL, M.; TOMANEC, O.; KALOUSEK, R.; DUB, P.; ŠIKOLA, T.:
  Characterization of oxidized gallium droplets on silicon surface: an ellipsoidal droplet shape model for angle resolved X-ray photoelectron spectroscopy analysis,
  Thin Solid Films, Vol.517, (2009), No.6, pp.1928-1934, ISSN 0040-6090
  journal article - other

List of publications at Portal BUT

Abstracts of most important papers:

• DVOŘÁK, P.; NEUMAN, T.; BŘÍNEK, L.; ŠAMOŘIL, T.; KALOUSEK, R.; DUB, P.; VARGA, P.; ŠIKOLA, T.:
  Control and Near-Field Detection of Surface Plasmon Interference Patterns,
  NANO LETTERS, Vol.13, (2013), No.6, pp.2558-2563, ISSN 1530-6984
  journal article - other
  The tailoring of electromagnetic near-field properties is the central task in the field of nanophotonics. In addition to 2D optics for optical nanocircuits, confined and enhanced electric fields are utilized in detection and sensing, photovoltaics, spatially localized spectroscopy (nanoimaging), as well as in nanolithography and nanomanipulation. For practical purposes, it is necessary to develop easy-to-use methods for controlling the electromagnetic near-field distribution. By imaging optical near-fields using a scanning near-field optical microscope, we demonstrate that surface plasmon polaritons propagating from slits along the metal dielectric interface form tunable interference patterns. We present a simple way how to control the resulting interference patterns both by variation of the angle between two slits and, for a fixed slit geometry, by a proper combination of laser beam polarization and inhomogeneous far-field illumination of the structure. Thus the modulation period of interference patterns has become adjustable and new variable patterns consisting of stripelike and dotlike motifs have been achieved, respectively.
• KALOUSEK, R.; DUB, P.; BŘÍNEK, L.; ŠIKOLA, T.:
  Response of plasmonic resonant nanorods: an analytical approach to optical antennas
  journal article in Web of Science
  An analytical model of the response of a free-electron gas within the nanorod to the incident electromagnetic wave is developed to investigate the optical antenna problem. Examining longitudinal oscillations of the free-electron gas along the antenna nanorod a simple formula for antenna resonance wavelengths proving a linear scaling is derived. Then the nanorod polarizability and scattered fields are evaluated. Particularly, the near-field amplitudes are expressed in a closed analytical form and the shift between near-field and far-field intensity peaks is deduced
• DUB, P.; LITZMAN, O.:
  Multiple wave scattering on a bordered crystal. Translation symmetry breaking and forbidden reflections,
  Acta Crystallographica, Vol.68, (2012), No.4, pp.494-504, ISSN 0108-7673
  journal article - other
  The interaction of a scalar wave (thermal neutrons) with a single Si crystal is treated using Ewald's self-consistent field method. Considering from the very beginning the two-dimensional translation symmetry of the problem, the reflectivities of allowed and forbidden reflections in the Bragg geometry valid for both coplanar and non-coplanar cases are derived. It is shown that there exists a very narrow reflectivity peak of the forbidden reflection as a result of the symmetry breaking due to a crystal surface.
• DUB, P.; LITZMAN, O.:
  The Ewald dynamical diffraction theory - ninety years later,
  Acta Crystallographica, Vol.61, (2005), No.2, pp.209-222, ISSN 0108-7673
  journal article - other
  Diffraction on a crystalline slab formed by point-like scattering centres is treated as a multiple scattering problem based on the Ewald equations. Using general results expressed in a lucid matrix form, the two-beam solution for both coplanar and non-coplanar cases valid near and far from Bragg peaks is found and a detailed comparison of the final formulae obtained with those following from Laues theory is performed.
• DUB, P., LITZMAN, O.:
  A note on the problem of scattering from a single atomic plane and a stack of planes. Differences between the Ewald and other diffraction theories,
  Acta Crystallographica, Vol.57, (2001), No.3, pp.212-216, ISSN 0108-7673
  journal article - other
  The scattering of a scalar plane wave (neutrons)from a single atomic plane consisting of any two-dimensional lattice with a basis is studied using the Ewald dynamical theory of diffraction. Formulae for the reflection and transmission coefficients obtained by evaluating the optical plane lattice sums are valid for general geometries, including nonsymmetrical and noncoplanar diffractions. The approach adopted is different from and more general than that by Yashiro&Takahashi [Acta Cryst. (2000), A56, 1663-1670]. The structure factor yielded by this procedure differs from that used in the kinematical or Laue dynamical diffraction theories.