Chirp effects in high-order harmonics generated from solid surface
C. PopoviciInstitut national de la recherche scientifique, Centre Énergie, Matériaux et Télécommunication, 1650 Lionel-Boulet, Varennes, Québec, J3X 1S2, CanadaR. A. GaneevScientific Association Akadempribor, Uzbekistan Academy of Science, AkademgorodokX. Lavocat-DubuisInstitut national de la recherche scientifique, Centre Énergie, Matériaux et Télécommunication, 1650 Lionel-Boulet, Varennes, Québec, J3X 1S2, CanadaFrançois VidalInstitut national de la recherche scientifique, Centre Énergie, Matériaux et Télécommunication, 1650 Lionel-Boulet, Varennes, Québec, J3X 1S2, CanadaT. OzakiInstitut national de la recherche scientifique, Centre Énergie, Matériaux et Télécommunication, 1650 Lionel-Boulet, Varennes, Québec, J3X 1S2, Canada
2010en
ABI
Abstract
We study the effect of pump laser chirp as a method to increase the efficiency of high-order harmonic generation from solid surfaces. Harmonics have been generated using a 40 fs, 800 nm, 1018 Wcm-2 pump laser with Al targets. This study provides evidence that HHG is critically dependent on the frequency component of the femtosecond pump laser.
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