Time-dependent depolarization of aligned HD molecules

N. C. M. Bartlett, D. J. Miller, R. N. Zare, A. J. Alexander, D. Sofikitis, T. P. Rakitzis

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

An aligned sample of HD(v = 1, J = 2, M-J = 0) molecules is prepared under collision-free conditions using the S(0) stimulated Raman pumping transition. Subsequent coupling to the spins of the deuteron I-D and the proton I-H causes the initial degree of alignment to oscillate and decrease as monitored over the time range from 0-13 mu s via the O(2) line of the [2 + 1] REMPI E,F-1 Sigma(+)(g) - X-1 Sigma(+)(g) (0,1) band. The time dependence of the rotational alignment is also calculated using both a hierarchical coupling scheme in which the rotational angular momentum J is regarded first to couple to I-D, and then the resultant F-i to couple to I-H, to form the total angular momentum F and a non-hierarchical coupling scheme in which the HD energy level structure is not assumed to be diagonal in the
Original languageEnglish
Pages (from-to)142-147
Number of pages6
JournalPhysical Chemistry Chemical Physics
Issue number1
Publication statusPublished - 2009

Keywords / Materials (for Non-textual outputs)

  • differential-cross-sections
  • orientation
  • alignment
  • scattering
  • reagents
  • product
  • cl


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