Molecular proximity effects in two-photon absorption

Andrews, David L. and Hopkins, Kevin P. (1988) Molecular proximity effects in two-photon absorption. Journal of Molecular Structure, 175. pp. 141-146. ISSN 0022-2860

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Under laser irradiation, the mutual interaction between molecules is shown to lead to a cooperative nonlinear process which results in entirely new features in the absorption spectrum. In the quantum electrodynamical formalism the coupling between molecular centres, induced by molecular proximity rather than collision, is mediated by means of virtual photon coupling and allows transitions which are forbidden in the absence of such interactions. The manifestation of circular dichroism, potential methods of observation and specific molecular examples are discussed. Attention is drawn to a number of possible resonance enhancement mechanisms and to the dependance of the absorption rate of molecular separation.

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 17:08
Last Modified: 09 Feb 2023 13:42
DOI: 10.1016/S0022-2860(98)80066-5


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