CARS spectroscopy of the (v=0→1) band in T2

Magnus Schlösser, X. Zhao, Madhu Trivikram, W. Ubachs, E.J. Salumbides

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Molecular hydrogen is a benchmark system for bound state quantum calculation and tests of quantum electrodynamical effects. While spectroscopic measurements on the stable species have progressively improved over the years, high-resolution studies on the radioactive isotopologues T2, HT and DT have been limited. Here we present an accurate determination of T2 Q(J = 0-5) transition energies in the fundamental vibrational band of the ground electronic state, by means of high-resolution coherent anti-Stokes Raman spectroscopy. With the present experimental uncertainty of 0.02 cm⁻¹, which is a fivefold improvement over previous measurements, agreement with the latest theoretical calculations is demonstrated.

CARS spectroscopy of the (v=0→1) band in T2 (PDF Download Available). Available from: [accessed Jan 26 2018].
Original languageEnglish
Article number214004
Pages (from-to)1-5
Number of pages5
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Issue number21
Early online date23 Oct 2017
Publication statusPublished - 2017


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