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18 December 2002 Optimization of π-A isotherms to give highly efficient SHG from Langmuir-Blodgett films
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Abstract
Langmuir-Blodgett films have been prepared from amphiphilc molecules containing an indandione-based nonlinear chromophore. Study of the pressure-area (π-A) isotherm enabled us to find optimal conditions for monolayer transfer to a glass substrate. The multilayer films thus formed exhibited strong optical second harmonic generation with a bulk nonlinear co-efficient equal to the ideal value predicted by the product of the chromophore density and its known molecular hyperpolarizability.
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Hanna Schwartz, P. Krief, J. Y. Becker, Lev Shapiro, Vladimir Khodorkovsky, Jacob T. Klug, E. Kovalev, Guilia Meshulam, Garry Berkovic, Zvi Kotler, and Schlomo Efrima "Optimization of π-A isotherms to give highly efficient SHG from Langmuir-Blodgett films", Proc. SPIE 4798, Linear and Nonlinear Optics of Organic Materials II, (18 December 2002); https://doi.org/10.1117/12.452070
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