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MILLIMETER-WAVE OPTICAL DOUBLE RESONANCE SPECTRA OF $NO_{2}$: IS N A GOOD QUANTUM NUMBER?

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/17032

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Title: MILLIMETER-WAVE OPTICAL DOUBLE RESONANCE SPECTRA OF $NO_{2}$: IS N A GOOD QUANTUM NUMBER?
Creators: Coy, Stephen L.; Lehmann, K. K.; De Lucia, Frank C.
Issue Date: 1986
Abstract: The double resonance spectrum of $NO_{2}$ has been observed between three ground state millimeter wave transitions and the optical $^{2}B$ electronic state region. The probed ground state transitions were the $N = 2, 4$, and $10, K = 0-1 Q$ branches near 250 GHz, and the optical range scanned was $16800 cm^{-1}$ to $16950 cm^{-1}$. The 10(0.10) - 10(1.9) F2 spectrum, when combined with results on the 9(1,9) - 10(0.10) F1 spectrum, establish violations of the $_{o}N = _{o}J$ selection rule, so that N is not a good quantum number in the upper state. The fraction of all possible symmetry-restricted basis states which contribute to a typical eigenstate, measured by Heller's F parameter, is similar for the three N values, but is greater for $K = 1$ than for $K = 0$. By identifying upper states in common. R lines from $N = 2$ and P lines from $N = 4$ have been identified.
URI: http://hdl.handle.net/1811/17032
Other Identifiers: 1986-RG-9
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