Abstract:
The above-threshold ionization of atoms by XUV short laser pulses with frequencies resonant with a ground-excited state transition is investigated. A theory based on a variational expression with trial wave functions for the final and the initial states is presented. For the former we use a Coulomb-Volkov wave function, and for the latter a close-coupling solution of the time-dependent Schrödinger equation considering a few bound states and their depletion towards the continuum. We find that this discrete-continuum Coulomb-Volkov theory provides a very good description of the photoelectron spectrum. In particular it accounts for the splitting of the above-threshold ionization peaks by Rabi oscillations and the appearance of secondary-peaks observed in full numerical simulations.
Registro:
Documento: |
Conferencia
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Título: | Secondary peaks in the atomic ionization by a resonant laser pulse |
Autor: | Bustamante, M.G.; Rodríguez, V.D.; Barrachina, R.O. |
Ciudad: | St. Petersburg |
Filiación: | Departamento de Física, Instituto de Física de Buenos Aires, Universidad de Buenos Aires, C.C. 67, Suc. 28, 1428 Buenos Aires, Argentina Centro Atómico Bariloche, Inst. Balseiro (Comision Nacional de Energia Atomica, CNEA, and Universidad Nacional de Cuyo, UNC), R8402AGP S. C. de Bariloche, Río Negro, Argentina CONICET, Argentina
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Palabras clave: | Atom lasers; Excited states; Ionization; Laser pulses; Photoelectron spectroscopy; Spectroscopy; Above-threshold ionization; Atomic ionization; Coulomb-Volkov wave function; Photoelectron spectrum; Rabi oscillations; Resonant laser pulse; Short laser pulse; State transitions; Wave functions |
Año: | 2012
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Volumen: | 397
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Número: | 1
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DOI: |
http://dx.doi.org/10.1088/1742-6596/397/1/012014 |
Título revista: | 21st International Conference on Spectral Line Shapes, ICSLS 2012
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Título revista abreviado: | J. Phys. Conf. Ser.
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ISSN: | 17426588
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17426588_v397_n1_p_Bustamante |
Referencias:
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Citas:
---------- APA ----------
Bustamante, M.G., Rodríguez, V.D. & Barrachina, R.O.
(2012)
. Secondary peaks in the atomic ionization by a resonant laser pulse. 21st International Conference on Spectral Line Shapes, ICSLS 2012, 397(1).
http://dx.doi.org/10.1088/1742-6596/397/1/012014---------- CHICAGO ----------
Bustamante, M.G., Rodríguez, V.D., Barrachina, R.O.
"Secondary peaks in the atomic ionization by a resonant laser pulse"
. 21st International Conference on Spectral Line Shapes, ICSLS 2012 397, no. 1
(2012).
http://dx.doi.org/10.1088/1742-6596/397/1/012014---------- MLA ----------
Bustamante, M.G., Rodríguez, V.D., Barrachina, R.O.
"Secondary peaks in the atomic ionization by a resonant laser pulse"
. 21st International Conference on Spectral Line Shapes, ICSLS 2012, vol. 397, no. 1, 2012.
http://dx.doi.org/10.1088/1742-6596/397/1/012014---------- VANCOUVER ----------
Bustamante, M.G., Rodríguez, V.D., Barrachina, R.O. Secondary peaks in the atomic ionization by a resonant laser pulse. J. Phys. Conf. Ser. 2012;397(1).
http://dx.doi.org/10.1088/1742-6596/397/1/012014