Vibrationally selective radiative and non-radiative transitions in gaseous hydrogen molecules |
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| Authors: | Sharma Ramesh C Waigh Thomas A Maini Anil K Thakur Surya N Singh Jagdish P Lin King C |
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| Affiliation: | School of Physics and Astronomy, The University of Manchester, Oxford Rd, Manchester M13 9PL, United Kingdom. rameshsharma@lastec.drdo.in |
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| Abstract: | An efficient vibrationally selective technique to build-up the v″=1 vibrational levels in gaseous hydrogen is demonstrated using stimulated Raman pumping (SRP). Both photo-acoustic Raman spectroscopy (PARS) and coherent anti-Stokes Raman spectroscopy (CARS) are used to study non-radiative and radiative (v″=0 and v″=1) transitions in gaseous H(2) molecules. The population fraction in the v″=1 vibrational level has been estimated using combined photo-acoustic and coherent anti-Stokes Raman spectroscopy with stimulated Raman pumping. |
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