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Phys. Rev. A 45, 2712 - 2715 (1992)

Natural lifetimes of excited states of neutral nitrogen determined by time-resolved laser spectroscopy

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G. J. Bengtsson, J. Larsson, S. Svanberg, and D. D. Wang
Department of Physics, Lund Institute of Technology, P.O. Box 118, S-221 00 Lund, Sweden

Received 6 May 1991

Radiative lifetimes were determined for three quartet states of neutral nitrogen, and sequences of Rydberg states were studied using depletion spectroscopy. Free nitrogen atoms were generated by photodissociation of N2O using frequency-tripled dye-laser radiation that was two-photon resonant with the 2p23p 4S or 4D states. Further quartet states were reached by a subsequent single-photon absorption. We obtain τ(2p23p 4D7/2)=44(2) ns, τ(2p23p 4S3/2)=26.0(1.5) ns, and τ(2p26s4P5/2)=41(7) ns.


©1992 The American Physical Society

URL: http://link.aps.org/abstract/PRA/v45/p2712
DOI: 10.1103/PhysRevA.45.2712
PACS: 32.70.Fw, 32.80.Rm, 33.80.Gj

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