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High-order harmonic generation in atomic hydrogen at 248 nm: Dipole-moment versus acceleration spectrum
Jiang, Tsin-Fu Chu, Shih-I
Jiang, Tsin-Fu
Chu, Shih-I
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Abstract
We present a study of the high-order harmonic-generation (HG) spectra of atomic hydrogen at 248 nm based on the Fourier transform of the expectation values of the induced dipole moment and acceleration. The calculations were performed by extending a fast-Fourier-transformation split-operator technique (in spherical coordinates) to the solution of the time-dependent wave functions in intense laser fields. It is seen that the acceleration form provides a more satisfactory and accurate framework for the study of the photoemission HG spectrum at very intense fields, particularly when ionization becomes appreciable.
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This is the published version, also available here: http://dx.doi.org/10.1103/PhysRevA.46.7322.
Date
1992-12-01
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American Physical Society
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Jiang, Tsin-Fu & Chu, Shih-I. "High-order harmonic generation in atomic hydrogen at 248 nm: Dipole-moment versus acceleration spectrum." Phys. Rev. A 46, 7322 – Published 1 December 1992. http://dx.doi.org/10.1103/PhysRevA.46.7322.