Abstract
In this paper we outline the novel features associated with two-photon processes in the presence of intense static electric fields. Both electrical polarisation effects and non-linear electro-optical effects are discussed, and their likely orders of magnitude estimated. It is illustrated how the interaction of the electric field with a molecular centre can lead to a relaxation of conventional two-photon selection rules, allowing spectroscopic access to otherwise forbidden excited states. Selection rules for the electro-optical channel are tabulated for some of the more common point groups.
Original language | English |
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Pages (from-to) | 135-140 |
Number of pages | 6 |
Journal | Journal of Molecular Structure |
Volume | 175 |
DOIs | |
Publication status | Published - 1 May 1988 |