The Na2 2 3pi(g) state: new observations and hyperfine structure |
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Authors: | Qi Peng Lazarov Guenadiy Lyyra A Marjatta Liu Yaoming Cui Chengzhe Li Li Jeung Gwang-Hi |
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Institution: | Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA. |
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Abstract: | Many more Na2 2 3pi(g) v = 0-43, omega = 0, 1, 2 levels have been observed by sub-Doppler continuous wave perturbation facilitated optical-optical double resonance fluorescence excitation spectroscopy and the hyperfine structure of the omega = 0 and 2 levels has been resolved. New molecular constants for the less perturbed v = 0-43 levels have been obtained with these new and the previously reported data. The hyperfine coupling scheme of the observed 2 3pi(g) levels is close to Hund's case a(beta) with a Fermi contact constant b(F) = 160+/-5 MHz, which is smaller than the Fermi contact constants of other Na2 triplet Rydberg states, b(F) = 200-245 MHz. |
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