The theory of double-beam three-photon absorption

Andrews, David L. (1982) The theory of double-beam three-photon absorption. The Journal of Chemical Physics, 77 (6). pp. 2831-2835. ISSN 0021-9606

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Abstract

This paper deals with the theory of double‐beam three‐photon absorption, in which the excitation process involves the concerted absorption of three photons from two laser beams which simultaneously irradiate the sample. Equations are derived for the rate of absorption under various polarization conditions, and the dependence on the angle between the two beams is examined in detail. It is shown how a set of experiments at a suitable angle with specified polarizations allows the determination of five molecular parameters which characterize the symmetry of the excited state. It is demonstrated how the results thereby provide for an unambiguous assignment of the excited state to one of six different symmetry classes. It is also shown that the double‐beam experiment allows access to excited states which are forbidden under single‐beam excitation.

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Chemistry
UEA Research Groups:	Faculty of Science > Research Groups > Physical and Analytical Chemistry (former - to 2017) Faculty of Science > Research Groups > Chemistry of Light and Energy Faculty of Science > Research Groups > Centre for Photonics and Quantum Science
Depositing User:	Pure Connector
Date Deposited:	18 Jan 2016 16:03
Last Modified:	09 Feb 2023 13:42
URI:	https://ueaeprints.uea.ac.uk/id/eprint/56446
DOI:	10.1063/1.444174

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