Measurements of the azimuthal anchoring energy at a polyimide-nematic interface with a new transmitted light method

Autor:	Sandro Faetti
Rok vydání:	2004
Předmět:	Materials science business.industry Anchoring General Chemistry Condensed Matter Physics Rotation Condensed Matter::Soft Condensed Matter Azimuth Optics Liquid crystal Distortion General Materials Science business Layer (electronics) Computer Science::Databases Energy (signal processing) Polyimide
Zdroj:	Molecular Crystals and Liquid Crystals. 421:225-234
ISSN:	1563-5287 1542-1406
DOI:	10.1080/15421400490501842
Popis:	A new transmitted light method has been used to measure the azimuthal anchoring energy coefficientWat the interface between the nematic liquid crystal 5CB and a rubbed polyimide substrate. This method overcomes the typical drawbacks of the transmitted light methods and provides an unambiguous measurement of the director rotation at the surface. The contributions of the bulk director distortion are very small and can be easily separated from those due to the anchoring. The measurements can be performed also in the critical case of somewhat strong anchoring. The small optical anisotropy of the orienting layer(polyimide)can be also taken into account.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d855b9f33e8a34b2140009bc0d779b76 https://doi.org/10.1080/15421400490501842 Zobrazit plný text záznamu