Kalle Ventola

Summary

Publications

  1. doi High phase retardation by waveguiding in slanted photonic nanostructures
    Kalle Ventola
    University of Eastern Finland, Department of Physics and Mathematics, Joensuu, Finland
    Opt Express 19:241-6. 2011
  2. doi High efficiency half-wave retardation in diffracted light by coupled waves
    Kalle Ventola
    Department of Physics and Mathematics, University of Eastern Finland, P O Box 111, FI 80101 Joensuu, Finland
    Opt Express 20:4681-9. 2012
  3. ncbi Polarization conversion in conical diffraction by metallic and dielectric subwavelength gratings
    Nicolas Passilly
    Department of Physics and Mathematics, University of Joensuu, P O Box 111, FIN 80101 Joensuu, Finland
    Appl Opt 46:4258-65. 2007

Collaborators

  • Nicolas Passilly
  • Jari Turunen
  • Jani Tervo
  • Petri Karvinen
  • Pasi Laakkonen

Detail Information

Publications3

  1. doi High phase retardation by waveguiding in slanted photonic nanostructures
    Kalle Ventola
    University of Eastern Finland, Department of Physics and Mathematics, Joensuu, Finland
    Opt Express 19:241-6. 2011
    ..We present physical principle, numerical analysis of the phenomenon and designs for half-wave retarders. As an experimental result, a slanted grating producing 177 degrees retardation and 95.5% efficiency is presented...
  2. doi High efficiency half-wave retardation in diffracted light by coupled waves
    Kalle Ventola
    Department of Physics and Mathematics, University of Eastern Finland, P O Box 111, FI 80101 Joensuu, Finland
    Opt Express 20:4681-9. 2012
    ..We present an experimental result with 58.9 % diffraction efficiency and a near perfect half-wave retardation. We explain the effect qualitatively using the classical coupled-wave approach...
  3. ncbi Polarization conversion in conical diffraction by metallic and dielectric subwavelength gratings
    Nicolas Passilly
    Department of Physics and Mathematics, University of Joensuu, P O Box 111, FIN 80101 Joensuu, Finland
    Appl Opt 46:4258-65. 2007
    ..The fabrication aspects and constraints are discussed in detail and the behavior of the gratings over broad wavelength bands is presented...