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- W1673642386 abstract "In this work we investigate the photoionization processes of magnesium through the interaction of high-intensity Ti:Sapphire laser pulses and a generated beam of magnesium atoms. Typical laser parameters are intensities of 10 to 10 W/cm, pulse widths of 120 fs, and carrier wavelengths of 780 to 830 nm. Observation and analysis of the laser-atom interaction is performed by detection of ions and free electrons created by the laser field, and measuring their flight time over a know distance. The resulting ion yields and photoelectron spectra are studied for their dependences on the peak field intensity, field ellipticity, carrier frequency, and electron ejection angle from the interaction region. We observe that the population and subsequent ionization of bound excited states is a dominant process for the photoionization of magnesium. Using mass spectrometry of the ions and linearly polarized light we observe increased ionization rates of the neutral and significantly enhanced ionization yields of doubly charged ions over that expected for sequential ionization of structureless atoms. For circularly polarized light we observe non-resonant multiphoton ionization of the neutral and a persistent enhanced ionization knee structure for the double ion." @default.
- W1673642386 created "2016-06-24" @default.
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- W1673642386 date "2002-01-01" @default.
- W1673642386 modified "2023-09-26" @default.
- W1673642386 title "Multiphoton and above-threshold ionization of magnesium using high-intensity titanium-sapphire laser pulses /" @default.
- W1673642386 hasPublicationYear "2002" @default.
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