Pump-wavelength-dependent second-harmonic generation in SiC-nanopowder-doped polymer films

D.A. Sidorov-Biryukov, S.O. Konorov, I. Bugar, J. Kovac, L. Fornarini, M. Carpanese, M. Avella, M.E. Enrico, D. Chorvat Jr., J. Kovac Jr., R. Fantoni, D. Chorvat, A.M. Zheltikov

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Abstract

Second-harmonic generation in polymer films doped with silicon carbide nanocrystals with typical sizes of 10-80 nm is experimentally studied. A substantial enhancement of second-harmonic generation was achieved by decreasing the wavelength of femtosecond pump pulses, produced by an optical parametric amplifier. This strong pump-wavelength dependence of diffuse second-harmonic generation indicates a significant role of scattering effects in nonlinear-optical interactions in nanopowder materials, suggesting strategies for a radical enhancement of second-harmonic generation in nanopowders by tuning the relation between the film thickness and the elastic-scattering length of photons.
Original languageEnglish
Pages (from-to)861 - 864
Number of pages4
JournalLaser Physics
Volume14
Issue number6
Publication statusPublished - Jun 2004
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Condensed Matter Physics
  • Industrial and Manufacturing Engineering

Cite this

Sidorov-Biryukov, D. A., Konorov, S. O., Bugar, I., Kovac, J., Fornarini, L., Carpanese, M., ... Zheltikov, A. M. (2004). Pump-wavelength-dependent second-harmonic generation in SiC-nanopowder-doped polymer films. Laser Physics, 14(6), 861 - 864.