Rotational Energy Transfer within the A1Σu+ State of Na2 Induced by Collisions with (2S1/2) Na
Keyword(s):
The (v’ = 34, J’ = 14) level of the A1Σ+u electronic state of Na2 has been selectively populated by excitation with the 578.1 nm line of a ring dye-laser with rhodamine 6G. Through collisions with (2S1/2) Na atoms, energy is transferred to neighbouring rotational levels in Na2, and the density of these levels is determined by observing the fluorescence to the electronic ground state. From previous measurements of the lifetime of the A1Σ+u state and new measurements of the intensities of collision-induced spectral lines, absolute collision cross-sections for all rotational transitions up to ΔJ = ±6 have been obtained; the total cross-section for all rotational transitions observed is: rotσtotal = 0.41 nm2.
1991 ◽
Vol 95
(8)
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pp. 5799-5808
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1994 ◽
Vol 100
(2)
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pp. 1775-1776
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1999 ◽
Vol 110
(1)
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pp. 412-422
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1994 ◽
Vol 100
(2)
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pp. 1777-1778
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1985 ◽
Vol 118
(5)
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pp. 464-467
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1976 ◽
Vol 64
(2)
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pp. 808-817
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1987 ◽
Vol 42
(7)
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pp. 731-734
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1979 ◽
Vol 366
(1725)
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pp. 225-246
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