Nonlinear Optical Measurements of Elastic Constants in Nematic Liquid Crystal |
| W.K. Bajdecki and M.A. Karpierz Institute of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warszawa, Poland |
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| A new method of measurements of elastic constants of nematic liquid crystals by applying the nonlinear optical effect is presented. This method bases on measurements of a value of the reorientation threshold in a liquid crystal layer while the reorientation is induced by the light beam passing through the layer. The obtained results are in a qualitative compatibility with the results obtained by classical methods. |
| DOI: 10.12693/APhysPolA.95.793 PACS numbers: 42.65.-k, 42.70.Df |