Lamb-dips and Lamb-peaks in the saturation spectrum of HD

M. L. Diouf, F. M.J. Cozijn, B. Darquié, E. J. Salumbides, W. Ubachs*

*Corresponding author for this work

Research output: Contribution to JournalArticleAcademicpeer-review

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The saturation spectrum of the R(1) transition in the (2-0) band in hydrogen deuteride (HD) is found to exhibit a composite line shape, involving a Lamb-dip and a Lamb-peak. We propose an explanation for such behavior based on the effects of crossover resonances in the hyperfine substructure, which is made quantitative in a density matrix calculation. This resolves an outstanding discrepancy on the rovibrational R(1) transition frequency, which is now determined at 217,105,181,901 (50) kHz and in agreement with current theoretical calculations.

Original languageEnglish
Pages (from-to)4733-4736
Number of pages4
JournalOptics Letters
Issue number19
Early online date23 Sep 2019
Publication statusPublished - 1 Oct 2019


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