Abstract
Expressions are derived for calculations of the total probabilities and electron spectra for the photodetachment of electrons from negative ions with filled valence s shells by ultrashort laser pulses. Particular calculations have been performed for two negative ions (H− and Li−) and titanium-sapphire laser pulses with a carrier wavelength of 0.8 μm and a duration of 4 fs. It is shown that measurements of the electron energy spectra allow either the emission spectrum to be determines for the known cross-section of photodetachment or a dispersion curve of the electron photodetachment cross section to be constructed for the given spectrum of laser pulses. In addition, these measurements provide a tool for the exact determination of electron binding energies.
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Original Russian Text © P.A. Golovinski, A.A. Drobyshev, 2012, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2012, Vol. 38, No. 6, pp. 37–44.
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Golovinski, P.A., Drobyshev, A.A. Electron photodetachment by short laser pulse. Tech. Phys. Lett. 38, 272–275 (2012). https://doi.org/10.1134/S1063785012030224
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DOI: https://doi.org/10.1134/S1063785012030224