Defect formation at the nematic-to-isotropic phase in a liquid crystalline polymer

Mohan Srinivasarao; H. Henning Winter; Richard S. Stein

doi:10.1117/12.151204

13 August 1993 Defect formation at the nematic-to-isotropic phase in a liquid crystalline polymer

Mohan Srinivasarao, H. Henning Winter, Richard S. Stein

Proceedings Volume 1911, Liquid Crystal Materials, Devices, and Applications II; (1993) https://doi.org/10.1117/12.151204
Event: IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, 1993, San Jose, CA, United States

Abstract

The optical properties of a thin film of a thermotropic liquid crystalline polymer, with one of the surfaces bounded by air and the other bounded by a glycerine surface reveals the presence of integer strength point defects in the material. Formation of point defects at the center of a nematic droplet of the polymer surrounded by its isotropic phase as the material is taken through a biphasic structure is observed and the small-angle light scattering from such a structure is discussed. These observations are used to argue that the material under study is a uniaxial nematic.

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Mohan Srinivasarao, H. Henning Winter, and Richard S. Stein "Defect formation at the nematic-to-isotropic phase in a liquid crystalline polymer", Proc. SPIE 1911, Liquid Crystal Materials, Devices, and Applications II, (13 August 1993); https://doi.org/10.1117/12.151204

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