Magnetic Field Enhancement of Dielectronic Recombination from a Continuum of Finite Bandwidth

Klimenko, V. E.; Ko, Lung; Gallagher, T. F.

doi:10.1103/physrevlett.83.3808

Cited by 14 publications

(6 citation statements)

References 12 publications

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“…Roughly analogous results have been obtained 17 for the dielectronic recombination of Ba 18 in the presence of a microwave field. In the future, it would be useful to examine the effects of higher microwave powers, explore different polarizations of the static and microwave fields, and extend the measurements to higher and perhaps two frequencies.…”

Section: ͓S0021-9606͑00͒01928-0͔supporting

confidence: 73%

Resonant enhancement of pulsed-field ionization zero-kinetic-energy photoelectron spectra using microwave fields

Murgu

Martin

Gallagher

2000

The Journal of Chemical Physics

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Section: ͓S0021-9606͑00͒01928-0͔supporting

confidence: 73%

Resonant enhancement of pulsed-field ionization zero-kinetic-energy photoelectron spectra using microwave fields

Murgu

Martin

Gallagher

2000

The Journal of Chemical Physics

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“…At lower magnetic fields m-mixing yields an increase of the DR rate with increasing B field. A corresponding experimental observation has been made recently by Klimenko and coworkers [21] who studied recombination of Ba + ions from a continuum of finite bandwidth which they had prepared by laser excitation of neutral Ba atoms. For a given electric field strength of 0.5 V/cm, they find that the recombination rate is increasingly enhanced by crossed magnetic fields up to about 20 mT.…”

Section: Introductionmentioning

confidence: 88%

Dielectronic recombination of lithiumlikeNi25+ions: High-resolution rate coefficients and influence of external crossed electric and magnetic fields

et al. 2000

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Absolute dielectronic recombination (DR) rates for lithiumlike Ni 25+ (1s 2 2s) ions were measured at high-energy resolution at the Heidelberg heavy-ion storage ring TSR. We studied the center-of-mass energy range 0-130 eV which covers all ∆n=0 core excitations. The influence of external crossed electric (0-300 V/cm) and magnetic (41.8-80.1 mT) fields was investigated. For the measurement at near-zero electric field resonance energies and strengths are given for Rydberg levels up to n=32; also Maxwellian plasma rate coefficients for the ∆n=0 DR at electron temperatures between 0.5 and 200 eV are provided. For increasing electric field strength we find that for both the 2p 1/2 and the 2p 3/2 series of Ni 24+ (1s 2 2pjnℓ) Rydberg resonances with n > 30 the DR rate coefficient increases approximately linearly by up to a factor of 1.5. The relative increase due to the applied electric field for Ni 25+ is remarkably lower than that found in previous measurements with lighter isoelectronic Si 11+ , Cl 14+ and also Ti 19+ ions, [T. Bartsch et al, Phys. Rev. Lett. 79, 2233(1997 82, 3779 (1999) and to be published] and in contrast to the results for lighter ions no clear dependence of the electric field enhancement on the magnetic field strength is found. The Maxwellian plasma rate coefficients for ∆n=0 DR of Ni 25+ are enhanced by at most 11% in the presence of the strongest experimentally applied fields.

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“…Here we shall investigate the doubly excited autoionizing Rydberg states of Ba by phase-conjugate six-wave mixing. Previously, these types of experiments were usually performed in atomic beams, where the resulting electrons or ions from the decay of autoionizing states were detected [11][12][13][14][15]. The methods used probed the populations of the autoionizing states.…”

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“…week ending 10 NOVEMBER 2006 193904-3 studied by this technique [14]. Recently, sudden ICE by femtosecond laser pulses has been employed for studying the evolution and decay of autoionizing states in the time domain [15].…”

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Generalizedn-Photon Resonant2n-Wave Mixing in an (n+1)-Level System with Phase-Conjugate Geometry

et al. 2006

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A generalized scheme for phase-conjugate resonant 2n-wave mixing, which has a high efficiency and is easy for phase matching, is proposed. As a new type of coherent laser spectroscopy this approach can be employed for studying highly excited atomic states or states with a high angular momentum. To demonstrate its feasibility we have studied the doubly excited autoionizing Rydberg states of Ba by phase-conjugate six-wave mixing, and have furthermore achieved eight-wave mixing in Na. This method may find wide application in related areas such as coherent transient spectroscopy, Autler-Townes spectroscopy and electromagnetically induced transparency. In particular, it may provide new insights into the nature of highly excited states.

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Magnetic Field Enhancement of Dielectronic Recombination from a Continuum of Finite Bandwidth

Cited by 14 publications

References 12 publications

Resonant enhancement of pulsed-field ionization zero-kinetic-energy photoelectron spectra using microwave fields

Resonant enhancement of pulsed-field ionization zero-kinetic-energy photoelectron spectra using microwave fields

Dielectronic recombination of lithiumlikeNi25+ions: High-resolution rate coefficients and influence of external crossed electric and magnetic fields

Generalizedn-Photon Resonant2n-Wave Mixing in an (n+1)-Level System with Phase-Conjugate Geometry

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