Interaction of blackbody radiation with xenon Rydberg atoms

Hildebrandt, G. F.; Beiting, Edward J.; Higgs, C. Fred; Hatton, Gregory J.; Smith, K. A.; Dunning, F. B.; Stebbings, R. F.

doi:10.1103/physreva.23.2978

Cited by 17 publications

(5 citation statements)

References 21 publications

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“…In the 1980-s, the interaction of Rydberg atoms with blackbody radiation was studied in various contexts. The attention was mainly focused on calculations and measurements of lifetimes of Rydberg states [3][4][5][6][7][8] and BBR-induced Stark shifts [2,9]. However, only a few studies considered ionization of Rydberg atoms by BBR.…”

Section: Introductionmentioning

confidence: 99%

“…Curves (1), (4), and (7) are the direct BBR-induced photoionization rates at the ambient temperatures of T =77, 300, and 600 K, respectively. Curves (2),(5), and (8) are the total BBR-induced ionization rates at the amplitude of extraction electric field pulses of E=5 V/cm for ambient temperatures of T =77, 300, and 600 K, respectively. Curves (3),(6), and (9) are the total BBR-induced ionization rates at the amplitude of extraction electric-field pulses of E=10 V/cm for ambient temperatures of T =77, 300, and 600 K respectively.…”

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confidence: 99%

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Ionization of Rydberg atoms by blackbody radiation

et al. 2009

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We have studied ionization of alkali-metal Rydberg atoms by blackbody radiation (BBR). The results of theoretical calculations of ionization rates of Li, Na, K, Rb and Cs Rydberg atoms are presented. The calculations have been performed for nS, nP and nD states for principal quantum numbers n=8-65 at ambient temperatures of 77, 300 and 600 K. The calculations take into account the contributions of BBR-induced redistribution of population between Rydberg states prior to photoionization and field ionization by extraction electric field pulses. The obtained results show that these phenomena affect both the magnitude of the measured ionization rates and their ndependence. A Cooper minimum for BBR-induced transitions between bound Rydberg states of Li has been found. The calculated ionization rates are compared with our earlier measurements of BBR-induced ionization rates of Na nS and nD Rydberg states with n=8-20 at 300 K. A good agreement for all states except nS with n > 15 is observed. Useful analytical formulas for quick estimates of BBR ionization rates of Rydberg atoms are presented. Application of BBR-induced ionization signal to measurements of collisional ionization rates is demonstrated. PACS numbers: 32.80.Fb, 32.80.Rm, 32.70.Cs § To whom correspondence should be addressed (beterov@isp.nsc.ru) 15P 16P 40P 16S CONTINUUM BBR photoionization SFI

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Section: Introductionmentioning

confidence: 99%

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Ionization of Rydberg atoms by blackbody radiation

et al. 2009

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“…It has also been shown that at the ambient temperature of 300 K BBR can photoionize Rydberg atoms with n ∼ 20 at astonishingly high rates (∼ 10 3 s −1 ) [2,3,4]. Strong effect of BBR on Rydberg atoms is related to large matrix elements of bound-bound and bound-free transitions between Rydberg states in the microwave and far infrared spectral range [5].…”

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Ionization of sodium and rubidiumnS,nP, andnDRydberg atoms by blackbody radiation

et al. 2007

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Results of theoretical calculations of ionization rates of Rb and Na Rydberg atoms by blackbody radiation (BBR) are presented. Calculations have been performed for nS, nP and nD states of Na and Rb, which are commonly used in a variety of experiments, at principal quantum numbers n=8-65 and at three ambient temperatures of 77, 300 and 600 K. A peculiarity of our calculations is that we take into account the contributions of BBR-induced redistribution of population between Rydberg states prior to photoionization and field ionization by extraction electric field pulses. The obtained results show that these phenomena affect both the magnitude of measured ionization rates and shapes of their dependences on n. The calculated ionization rates are compared with the results of our earlier measurements of BBR-induced ionization rates of Na nS and nD Rydberg states with n=8-20 at 300 K. A good agreement for all states except nS with n > 15 is observed. We also present the useful analytical formulae for quick estimation of BBR ionization rates of Rydberg atoms.

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“…The blackbody radiation hypothesis was not as daring as it might seem. This mechanism had been extensively investigated (Hildebrandt et al, ) for neutral noble gas atoms laser‐excited to specific Rydberg states that were then observed to transition to even higher states under essentially collision‐free conditions. The main objection to extension of this well‐documented phenomenon to our mass spectrometric experiments was the susceptibility of high Rydberg states to field ionization (in fact this property was used as the diagnostic technique in the neutral atom work).…”

Section: Hands Across the Ocean: Guelph‐swansea Collaborationmentioning

confidence: 99%