{"title":"Three-photon ionization of He/sup +/ by the 13th harmonic of a Ti:sapphire laser","authors":"K. Ishikawa","doi":"10.1109/EQEC.2003.1313920","DOIUrl":null,"url":null,"abstract":"In this study, numerical experiments of three-photon ionization of He/sup +/ are performed. He/sup +/ is chosen over He because it is easy to prepare (by optical field ionization) and its 1s - 2s transition (40.8 eV) is close to the two-photon resonance of the 13th harmonics of a Ti:sapphire laser. Moreover, the exact solution can be delivered for this hydrogenlike system. We solve the time-dependent Schrodinger equation numerically using the Peaceman-Rachford method. Results show that this process is an attractive candidate for the observation of a third-order nonlinear optical effect and even above-threshold ionization in the XUV range.","PeriodicalId":432096,"journal":{"name":"Conference on Lasers and Electro-Optics, 2003. CLEO '03.","volume":"8 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference on Lasers and Electro-Optics, 2003. CLEO '03.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EQEC.2003.1313920","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
In this study, numerical experiments of three-photon ionization of He/sup +/ are performed. He/sup +/ is chosen over He because it is easy to prepare (by optical field ionization) and its 1s - 2s transition (40.8 eV) is close to the two-photon resonance of the 13th harmonics of a Ti:sapphire laser. Moreover, the exact solution can be delivered for this hydrogenlike system. We solve the time-dependent Schrodinger equation numerically using the Peaceman-Rachford method. Results show that this process is an attractive candidate for the observation of a third-order nonlinear optical effect and even above-threshold ionization in the XUV range.
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