Articles you may be interested inResonance enhanced multiphoton ionization spectroscopy of the NF molecule: 1Σ+ and 1Δ 3p Rydberg states A (3+1) resonance enhanced multiphoton ionization study of the C 1Σ+ and E 1Π states of CO: Polarization dependence used to probe electronic excitation routes and electronic character J. Chem. Phys. 99, 5061 (1993); 10.1063/1.466006Rotational analysis of v=1 level of n=810 Rydberg states of CO by triple resonant multiphoton spectroscopy A study of some Rydberg states of CO2 by (3+1) multiphoton ionization spectroscopy Two-photon absorption spectra ofthe CO 3s B 11;+ +--X 11;+ (v',v") = (0,0), (1,1), (2,2),(1,0), and 3pu C 11;+ _ -X 11;+ (0,0) transitions have been observed in a room temperature cell and in an atmospheric pressure hydrocarbon flame using fluorescence (B 11;+ -A In) and ionization detection. The ratio of the transition strengths for theB 11;+ --X 11;+ (0,0) Qbranch head is found to exceed 200:1 for excitation with two identical linearly polarized photons compared with two circularly polarized photons. Weak 0 and Sbranches are observed for the first time for the B 11;+ --X 11;+ (0,0) transition and show the expected 2:3 polarization ratio. These measured polarization ratios are well described by two-photon absorption theory for 1; --1; transitions. In contrast, an earlier study by another group obtained a value of 0.7:1 for the Q-branch polarization ratio which did not fit the predictions of two-photon absorption theory.

The multiplet state distribution of O(3 P J ) produced in the 193 nm photodissociation of SO2

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