1. RRI Digital Repository
  2. 06. Soft Condensed Matter
  3. Research Papers (SCM)
Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3227
Full metadata record
DC FieldValueLanguage
dc.contributor.authorBarbero, G.-
dc.contributor.authorMadhusudana, N.V.-
dc.contributor.authorDurand, G.-
dc.date.accessioned2007-07-09T06:57:12Z-
dc.date.available2007-07-09T06:57:12Z-
dc.date.issued1984-
dc.identifier.citationJournal de Physique Lettres, 1984, Vol.45, pL613-L619en
dc.identifier.issn0302-072X-
dc.identifier.urihttp://hdl.handle.net/2289/3227-
dc.descriptionRestricted Access.en
dc.description.abstractWe extend the wedge technique of Riviere et al. to measure the pretilt angle Φ and the (weak) anchoring energy of a nematic liquid crystal oriented on a suitably treated glass surface. The liquid crystal is placed in a wedge shaped space formed by the plate to be studied and a (( standard )) plate giving a strong homeotropic anchoring. Instead of using a total reflection technique, we measure the optical path difference (Δl) between the ordinary and extraordinary waves, as a function of the sample thickness (d). From an analysis of this variation, we obtain the pretilt angle from the region of large thickness, and the anchoring energy from the region of small thickness, a domain which could not be studied with the previous technique. The transition thickness d is comparable with the extrapolation length L associated with the surface energy. Typical values of Φ and L for rubbed silane coated plates are - 0.8 radian and - 1 μm respectively.en
dc.format.extent380712 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherLes Ulis : Les Editions de Physiqueen
dc.rights1984 Les Ulis : Les Editions de Physiqueen
dc.titleWeak anchoring energy and pretilt of a nematic liquid crystalen
dc.typeArticleen
Appears in Collections:Research Papers (SCM)

Files in This Item:
File Description SizeFormat 
1984 J de Phys Lett V45 p613.pdf
  Restricted Access		Restricted Access.371.79 kBAdobe PDFView/Open Request a copy
Show simple item record


Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.