Pump-wavelength-dependent second-harmonic generation in SiC-nanopowder-doped polymer films
| Autor: | Sidorov-Biryukov, D. A., Konorov, S. O., Bugar, I., Kovac, J., Fornarini, L., Carpanese, M., Maurizio Avella, Enrico, M. E., Chorvat Jr, D., Kovac Jr, J., Fantoni, R., Chorvat, D., Zheltikov, A. M. |
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| Jazyk: | angličtina |
| Rok vydání: | 2004 |
| Předmět: | |
| Zdroj: | Laser physics 14 (2004): 861–864. info:cnr-pdr/source/autori:Sidorov-Biryukov, D.A.; Konorov, S.O.; Bugar, I.; Kovac, J.; Fornarini, L.; Carpanese, M.; Avella, M.; Errico, M.E.; Chorvat J., D.; Kovac Jr., J.; Fantoni, R.; Chorvat, D.; Zheltikov, A.M./titolo:Pump-wavelength-dependent second-harmonic generation in SiC-nanopowder-doped polymer films/doi:/rivista:Laser physics/anno:2004/pagina_da:861/pagina_a:864/intervallo_pagine:861–864/volume:14 Scopus-Elsevier |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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