APPLICATION OF PHASE-TRANSITIONS IN LC VISION

Authors
TOMILIN MG FLEGONTOV YA
Citation
Mg. Tomilin et Ya. Flegontov, APPLICATION OF PHASE-TRANSITIONS IN LC VISION, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 301, 1997, pp. 91-96
Citations number
13
Categorie Soggetti
Crystallography
Journal title
Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals → ACNP
ISSN journal
1058725X
Volume
301
Year of publication
1997
Pages
91 - 96
Database
ISI
SICI code
1058-725X(1997)301:<91:AOPILV>2.0.ZU;2-D
Abstract
A thin layer of NLC applied on the surface of a material as a free fil m can visualize through a polarizing microscope different types of sur face defects. We developed a new modification of this LC vision based on phase transitions in NLC, which increase the contrast or the size o f defect's images. The behavior of nematic phase is explained using a simplified Landau approach. For the first time the film thickness, var ying because of the molecules reorientation, is taken into account.