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Picosecond measurement of the nonlinear refractive index of new salts of carboxylate anions with chiral ammonium cations |
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| Affiliation: | 1. Laboratoire des Propriétés Optiques des Matériaux et Applications UMR-CNRS 6136, 2, Bd. Lavoisier, 49045 Angers Cedex, France;2. Laboratoire de chimie, Ingénierie Moléculaire et Matériaux d’Angers, UMR-CNRS 6200, 2, Bd. Lavoisier, 49045 Angers Cedex, France;3. Laboratorio de Quimica Inorgánica Teorica, Departamento de Quimica, Facultad de Ciencias, La Universidad del Zulia, AP 5265 Grano de Oro, Maracaibo, Venezuela;4. Laboratorio de Optica Cuántica, Centro de Física, Instituto Venezolano de Investigaciones Científicas, Caracas 1020A, AP 21827, Venezuela |
| Abstract: | The third order nonlinear optical properties of novel carboxylate anions with chiral amines and ammonium cations have been studied by a new alternative of the classical z-scan technique with picosecond laser pulses (pulse duration of 30 ps at 1064 nm wavelength). The materials do not present linear and nonlinear (two-photon) absorptions at the wavelength and the intensities used for the experiments. The non-resonant molecular second order hyperpolarizability γ obtained can reach 4.4 × 10−48 SI. These values are two and three orders of magnitude larger than those CS2 and of C6H6 respectively. |
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