Absolute Raman frequency measurement of the Q(2) line in D_2 using cw CARS
- 1 November 1977
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 1 (5) , 149-151
- https://doi.org/10.1364/ol.1.000149
Abstract
Coherent anti-Stokes Raman spectroscopy (CARS) is combined with high-resolution interferometry to measure the absolute Raman shift of the Q(2) vibrational line in D2. The preliminary value found is 2987.2371 ± 0.001 cm−1. Such precision is essential for the testing of ab initio energy-level calculations for the hydrogen isotopes.Keywords
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