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Dr J. Pérez-Moreno, University of Leuven, Belgium
Thursday 01 November 2007, 16:00-17:00
Sum-rules and quantum limits: Using first principles to understand nonlinear optical behaviour
- 👤 Speaker: Dr J. Pérez-Moreno, University of Leuven, Belgium
- 📅 Date & Time: Thursday 01 November 2007, 16:00 - 17:00
- 📍 Venue: Mott Seminar Room, Cavendish Laboratory, Department of Physics
Abstract
Much progress has been made in improving the molecular hyperpolarizability (i.e. the nonlinear susceptibility per molecule) by constructing larger structures with lots of pi-delocalized electrons. However, this bigger-is-better approach does not help to answer the more fundamental question of what intrinsic molecular properties yield the largest response. We introduce a novel analysis (the quantum limits analysis) which is simple to apply and combines first principles with experimental results. The quantum limits analysis allows us to determine the intrinsic nonlinear efficiency of a structure and highlights the underlying physical principles behind the nonlinear response of molecules.
Series This talk is part of the Physics and Chemistry of Solids Group series.
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