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5 September 2015 Design rules for quasi-linear nonlinear optical structures
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Abstract
The maximization of the intrinsic optical nonlinearities of quantum structures for ultrafast applications requires a spectrum scaling as the square of the energy eigenstate number or faster. This is a necessary condition for an intrinsic response approaching the fundamental limits. A second condition is a design generating eigenstates whose ground and lowest excited state probability densities are spatially separated to produce large differences in dipole moments while maintaining a reasonable spatial overlap to produce large off-diagonal transition moments. A structure whose design meets both conditions will necessarily have large first or second hyperpolarizabilities. These two conditions are fundamental heuristics for the design of any nonlinear optical structure.
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Richard Lytel, Sean M. Mossman, and Mark G. Kuzyk "Design rules for quasi-linear nonlinear optical structures", Proc. SPIE 9564, Light Manipulating Organic Materials and Devices II, 956408 (5 September 2015); https://doi.org/10.1117/12.2191992
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