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Second-order susceptibilities of anisotropic liquid-crystal thin films |
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| Authors: | M. Pinnow G. Marowsky F. Sieverdes F. H. Kreuzer H. Leigeber A. Miller P. Spes |
| Affiliation: | (1) Max-Planck-Institut für biophysikalische Chemie, Abt. Laserphysik, Am Faßberg, D-3400 Göttingen, Germany;(2) Consortium für elektrochemische Industrie GmbH, Zentrale Forschungsgesellschaft der Wacker Chemie GmbH, Zielstattstraße 20, D-8000 München 70, Germany |
| Abstract: | Using optical second-harmonic generation, we have measured the anisotropic orientation behavior of liquid crystal (LC) molecules in thin films. A high degree of in-plane anisotropy was obtained by depositing the LC films onto rubbed polyimide-covered substrates. The analysis with respect to the relevant second-order susceptibility tensor components is based upon the experimental results obtained in transmission geometry using different angles of incidence for the separation of isotropic and anisotropic contributions. |
| Keywords: | Second-harmonic generation liquid crystals orientation analysis |
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