Intense multimicrojoule high-order harmonics generated from neutral atoms of In2O3 nanoparticles
L. B. Elouga BomInstitut National de la Recherche Scientifique 1 Centre Énergie, Matériaux et Télécommunications, , 1650 Lionel-Boulet, Varennes, Québec J3X 1S2, CanadaR. A. GaneevInstitut National de la Recherche Scientifique 1 Centre Énergie, Matériaux et Télécommunications, , 1650 Lionel-Boulet, Varennes, Québec J3X 1S2, CanadaJ. Abdul-HadiInstitut National de la Recherche Scientifique 1 Centre Énergie, Matériaux et Télécommunications, , 1650 Lionel-Boulet, Varennes, Québec J3X 1S2, CanadaFrançois VidalInstitut National de la Recherche Scientifique 1 Centre Énergie, Matériaux et Télécommunications, , 1650 Lionel-Boulet, Varennes, Québec J3X 1S2, CanadaT. OzakiInstitut National de la Recherche Scientifique 1 Centre Énergie, Matériaux et Télécommunications, , 1650 Lionel-Boulet, Varennes, Québec J3X 1S2, Canada
ABI
Аннотация
We studied high-order harmonic generation from plasma that contains an abundance of indium oxide nanoparticles. We found that harmonics from nanoparticle-containing plasma are considerably more intense than from plasma produced on the In2O3 bulk target, with high-order harmonic energy ranging from 6 μJ (for the ninth harmonic) to 1 μJ (for the 17th harmonic) in the former case. The harmonic cutoff from nanoparticles was at the 21st order, which is lower than that observed using indium oxide solid target. By comparing the harmonic spectra obtained from solid and nanoparticle indium oxide targets, we concluded that intense harmonics in the latter case are dominantly generated from neutral atoms of the In2O3 nanoparticles.
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