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On the measurement of molecular anisotropies using laser techniques. I. Polarized laser fluorescence

Bain, AJ; McCaffery, AJ; (1985) On the measurement of molecular anisotropies using laser techniques. I. Polarized laser fluorescence. Journal of Chemical Physics , 83 (6) 2627 - 2631. 10.1063/1.449263. Green open access

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Abstract

The tensor density matrix formalism is used to derive expressions for the circular and linear polarization of laser‐induced fluorescence from molecules which have an anisotropic distribution in the spatial orientation of their ground state angular momentum components. The generalized anisotropic distribution is expressed as a series of state multipolar moments and it is shown that the excited state multipolar moments created therefrom by the absorption of laser radiation may be quite complex even in the absence of perturbations which cause cross relaxation. Under these circumstances, polarized laser fluorescence does not give an unambiguous measure of the ground state multipolar moments and in succeeding papers we discuss methods which do yield these quantities without ambiguity.

Type: Article
Title: On the measurement of molecular anisotropies using laser techniques. I. Polarized laser fluorescence
Open access status: An open access version is available from UCL Discovery
DOI: 10.1063/1.449263
Publisher version: http://dx.doi.org/10.1063/1.449263
Language: English
Additional information: The following article appeared in: Bain, AJ; McCaffery, AJ; (1985) On the measurement of molecular anisotropies using laser techniques. I. Polarized laser fluorescence. Journal of Chemical Physics, 83 (6) 2627 - 2631, and may be found at: http://dx.doi.org/10.1063/1.449263. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing.
Keywords: Anisotropy, Fluorescence, Ground states, Angular momentum, Excited states
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/1400109
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