11 October 2012 Using geometry to enhance the nonlinear response of quantum confined systems
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We study the effect of geometry on the nonlinear response of a network of quantum wires that form loops. Exploiting the fact that a loop’s transition moment matrix and energies are exactly solvable for each wire segment, they can be pieced together to determine a loop’s properties. A Monte Carlo method is used to sample the configuration space of all possible geometries to determine the shape that optimizes the intrinsic hyperpolarizability. We suggest that a combination of wire geometry and confinement effects can lead to artificial systems with ultra-large nonlinear response, which can be potentially made using known nanofabrication techniques.
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Shoresh Shafei, Rick Lytel, Mark G. Kuzyk, "Using geometry to enhance the nonlinear response of quantum confined systems", Proc. SPIE 8474, Optical Processes in Organic Materials and Nanostructures, 84740P (11 October 2012); doi: 10.1117/12.928874; https://doi.org/10.1117/12.928874


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