Degenerate four-wave-mixing spectroscopy in NaH |
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Authors: | M. Motzkus G. Pichler M. Dillmann K. L. Kompa P. Hering |
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Affiliation: | (1) Max-Planck-Institut für Quantenoptik, D-85748 Garching, Germany;(2) Present address: Institute of Physics of the University, 41000 Zagreb, Croatia |
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Abstract: | We performed DFWM spectroscopy on X–1+–A1+ transitions in NaH produced in an indirect photochemical reaction between Na(3p) and H2 and detected v=1, 2 and 3 ground state vibrational levels of NaH molecules, whereas with resonance enhanced CARS, we observed v=0 levels only. This different sensitivity can be explained by considering the Franck-Condon-factors and the relevant damping coefficients for the corresponding transitions in the NaH molecule. Time resolved DFWM spectroscopy showed that NaH(v=1) molecules effectively live much longer than Na(3p) atoms which merely follow the laser excitation pulse. |
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Keywords: | 42.65.-k 42.62.Fi |
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