Number density-to-flux transformation revisited: kinematic effects in the use of laser-induced fluorescence for scattering experiments

• Published in: Chemical physics letters Vol. 176; no. 2; pp. 183 - 190
• Main Authors: Sonnenfroh, David M., Liu, Kopin
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 11.01.1991; Elsevier Science
• Subjects: Atomic and molecular collision processes and interactions; Atomic and molecular physics; Exact sciences and technology; Physics; Scattering of atoms, molecules and ions; Reactive collision; Crossed beams; Oxygen Molecules; Cross section; Theoretical study; Molecule molecule collision; Experimental study; Fluorescence spectrometry; Inorganic compound; Very low energy; Diatomic molecule; Laser beam; Kinematics; Carbon monoxide; Hydroxyl
• ISSN: 0009-2614; 1873-4448
• DOI: 10.1016/0009-2614(91)90152-Y

A simple model is proposed to account for the density-to-flux transformation in the use of LIF detection for scattering experiments. The validity of the model is verified experimentally with two examples. In the first example, OH + CO, the application of this approach is able to correct for the kinematic effects in the transformation and to recover the state-resolved excitation function. In the second example, CN + O 2, the consideration of the density-to-flux transformation leads to an intriguing possibility that a qualitative picture of the product state-selected angular distribution can be inferred.