Anomalous enhancement of a single high-order harmonic by using a laser-ablation tin plume at 47 nm
Masayuki SuzukiInstitute for Solid State Physics, University of Tokyo, Chiba, Japan. [email protected]Motoyoshi BabaUniversity of TokyoR. A. GaneevUniversity of TokyoHiroto KurodaUniversity of TokyoT. OzakiInstitut National de la Recherche Scientifique
2006en
ABI
Аннотация
We have successfully demonstrated intensity enhancement of a single high-order harmonic at a wavelength of 46.76 nm by using low-ionized tin ions in a laser-ablation plume as the nonlinear medium. The ablation plume was produced by irradiating a solid tin target with a 10 mJ energy picosecond laser pulse. Strong 17th-harmonic generation at a wavelength of 46.76 nm was observed with a conversion efficiency of about 10(-4). We attribute the strong enhancement of the single high-order harmonic to multiphoton resonance with a strong radiative transition of the Sn II ion.
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