Petri Karvinen

Summary

Affiliation: University of Joensuu
Country: Finland

Publications

  1. ncbi Enhancement of laser-induced fluorescence at 473 nm excitation with subwavelength resonant waveguide gratings
    Petri Karvinen
    Department of Physics and Mathematics, University of Joensuu, Joensuu, Finland
    Opt Express 16:16364-70. 2008
  2. doi Strong fluorescence-signal gain with single-excitation-enhancing and emission-directing nanostructured diffraction grating
    Petri Karvinen
    University of Joensuu, Department of Physics and Mathematics, P O Box 111, FI 80101 Joensuu, Finland
    Opt Lett 34:3208-10. 2009
  3. doi Polarization insensitive resonance-domain blazed binary gratings
    Heikki J Hyvärinen
    Department of Physics and Mathematics, University of Eastern Finland, Joensuu, Finland
    Opt Express 18:13444-50. 2010

Collaborators

Detail Information

Publications3

  1. ncbi Enhancement of laser-induced fluorescence at 473 nm excitation with subwavelength resonant waveguide gratings
    Petri Karvinen
    Department of Physics and Mathematics, University of Joensuu, Joensuu, Finland
    Opt Express 16:16364-70. 2008
    ..More than 80 times higher laser-induced fluorescence yield was observed from enhanced green fluorescence protein on the structure when compared to same material on a flat surface...
  2. doi Strong fluorescence-signal gain with single-excitation-enhancing and emission-directing nanostructured diffraction grating
    Petri Karvinen
    University of Joensuu, Department of Physics and Mathematics, P O Box 111, FI 80101 Joensuu, Finland
    Opt Lett 34:3208-10. 2009
    ..530-fold enhancement of detected signal is achieved compared with the signal from flat surface. Also, changes in polarization and coherence properties of the fluorescent light are found to be remarkable...
  3. doi Polarization insensitive resonance-domain blazed binary gratings
    Heikki J Hyvärinen
    Department of Physics and Mathematics, University of Eastern Finland, Joensuu, Finland
    Opt Express 18:13444-50. 2010
    ..5lambda at lambda = 633 nm. The measured efficiency (81% for TE and 85% for TM polarization) agrees well with the calculated value, 84%...