Control of multiphoton radiative recombination through the action of two low-frequency fields

Bivona, S.; Burlon, R.; Ferrante, G.; Leone, Cláudio

doi:10.1002/lapl.200310034

Cited by 9 publications

(3 citation statements)

References 11 publications

(22 reference statements)

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“…Multiphoton ionization spectroscopy probes the excited state structure of atoms and molecules in such a way that the information obtained is complementary to conventional one photon spectroscopy [1][2][3][4][5][6][7]. The rare gas atoms are often favored subjects for experiment studies of multiphoton ionization (MPI) [8,9].…”

Section: Introductionmentioning

confidence: 99%

Multi-photon resonant ionization of xenon in the vicinity of 440 nm

Chen

Fan

et al. 2010

2010 Academic Symposium on Optoelectronics and Microelectronics Technology and 10th Chinese-Russian Symposium on Laser Physics

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By combining the pulse molecular beam technique and time of flight mass spectrum, the multiphoton resonance ionization of Xe in the vicinity of 440 nm is studied. The dependence of resonant ionization on laser energy and source pressure of Xe was analyzed and discussed. The resonant ionization spectrum near 440 nm was obtained and the AC Stark effect was determined to be the major cause of asymmetric line broadening in the low pressure multiphoton ionization spectrum of xenon. The results show that spectrum broadening could be ascribed to cooperative effects from different laser energy and electric field.

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Section: Introductionmentioning

confidence: 99%

Multi-photon resonant ionization of xenon in the vicinity of 440 nm

Chen

Fan

et al. 2010

2010 Academic Symposium on Optoelectronics and Microelectronics Technology and 10th Chinese-Russian Symposium on Laser Physics

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“…In the stimulated resonant radiative recombination the laser field is weak and only one-photon process occurs. The availability of intense laser fields allows to observe multiphoton processes in radiative recombination and it has prompted investigations i) in the regime of moderate intense fields, when more than one photon is exchanged, but the number of exchanged photons remains still small [10,11]; and ii) in the strong field regime, when a large number of photons participates to the process [12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Asymmetries in the momentum distributions of electrons stripped by a XUV chirped pulse in the presence of a laser field

et al. 2012

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The ionization of hydrogen by a chirped XUV pulse in the presence of a few cycle infrared laser pulse has been investigated. The electron momentum distribution has been obtained by treating the interaction of the atom with the XUV radiation at the first order of the time-dependent perturbation theory and describing the emitted electron through the Coulomb-Volkov wavefunction. The results of the calculations agree with the ones found by solving numerically the time-dependent Schrödinger equation. It has been found that depending on the delay between the pulses the combined effect of the XUV chirp and of the steering action on the infrared field brings about asymmetries in the electron momentum distribution. These asymmetries may give information on both the chirp and the XUV pulse duration.

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“…of the external electromagnetic field. When the recombination process occurs in a very intense nonresonant monochromatic laser fields, a large number of photons may take part into the process, and many different multiphoton channels have comparable probabilities of occurrence [1][2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Controlling laser assisted radiative recombination with few-cycle laser pulses

Bivona¹,

Burlon²,

Leone³

2006

Laser Phys. Lett.

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We report on the radiative recombination of a free electron with a hydrogenic ion in the presence of a few-cycle pulses. It has been shown that the main features of the emission spectra may be described in the framework of a semiclassical model in which the recombination is viewed as a two-step process. The spectra width of the emitted photon energy is practically confined in a range of values in which the emission is classically allowed. Moreover, it has been found that spectra width can be controlled by varying the carrier envelope phase and/or the pulse peak intensity.

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Control of multiphoton radiative recombination through the action of two low-frequency fields

Cited by 9 publications

References 11 publications

Multi-photon resonant ionization of xenon in the vicinity of 440 nm

Multi-photon resonant ionization of xenon in the vicinity of 440 nm

Asymmetries in the momentum distributions of electrons stripped by a XUV chirped pulse in the presence of a laser field

Controlling laser assisted radiative recombination with few-cycle laser pulses

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