Black-body induced ionization rate of Rydberg states in helium

I. L. Glukhov; V. D. Ovsiannikov

doi:10.1117/12.751816

19 July 2007 Black-body induced ionization rate of Rydberg states in helium

I. L. Glukhov, V. D. Ovsiannikov

Proceedings Volume 6726, ICONO 2007: Physics of Intense and Superintense Laser Fields; Attosecond Pulses; Quantum and Atomic Optics; and Engineering of Quantum Information; 67261F (2007) https://doi.org/10.1117/12.751816
Event: The International Conference on Coherent and Nonlinear Optics, 2007, Minsk, Belarus

Abstract

The probabilities of photoionization by the black-body radiation (BBR) were calculated for singlet and triplet S-, P-, and D-Rydberg states of a neutral helium atom. The numerical values obtained on the basis of the Fues model potential for states with the principal quantum number n ranging from 8 to 45 were used to derive a formula which not only reproduces the asymptotical behavior of the ionization rate for n → ∞ but also describes exactly its maximums. The n-independent constants in this formula are determined by a third order polynomial in powers of the absolute temperature with coefficients derived from the calculated data for the temperature range from 200 to 2000 K.

Citation Download Citation

I. L. Glukhov and V. D. Ovsiannikov "Black-body induced ionization rate of Rydberg states in helium", Proc. SPIE 6726, ICONO 2007: Physics of Intense and Superintense Laser Fields; Attosecond Pulses; Quantum and Atomic Optics; and Engineering of Quantum Information, 67261F (19 July 2007); https://doi.org/10.1117/12.751816

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