30 August 2005 Why experimental hyperpolarizabilities fall short of the fundamental limits and new approaches for breaking this barrier
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Abstract
Sum rules have been shown to impose a fundamental limit on the of nonlinear-optical susceptibility. All of the measured values of the hyperpolarizability and second hyperpolarizability over the last 25+ years, be it on- or off-resonance, fall a factor of 103/2 below these limits. Not only is this result scientifically puzzling on a fundamental level; but, has implications on the kinds of practical devices that can be made. In this work, we discuss molecular engineering techniques that aim to break this bottleneck.
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Mark G. Kuzyk, Kakali Tripathi, Koen Clays, Javier Perez-Moreno, Inge Asselberghs, Yuxia Zhao, Kai Song, Janka Matrai, Marc De Maeyer, Benjamin Coe, Anne Myers Kelley, Hachiroy Nakanishi, Oh-Kil Kim, "Why experimental hyperpolarizabilities fall short of the fundamental limits and new approaches for breaking this barrier", Proc. SPIE 5935, Linear and Nonlinear Optics of Organic Materials V, 593507 (30 August 2005); doi: 10.1117/12.615807; https://doi.org/10.1117/12.615807
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