Marino, Antigone and Santamato, Enrico and Abbate, Giancarlo (2009) Ellipsometric study of vertically aligned liquid crystals. [Pubblicazione in rivista scientifica]

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Item Type: Pubblicazione in rivista scientifica
Lingua: English
Title: Ellipsometric study of vertically aligned liquid crystals
Marino, AntigoneUNSPECIFIED
Santamato, EnricoUNSPECIFIED
Abbate, GiancarloUNSPECIFIED
Autore/i: A. Marino, E. Santamato, N. Bennis, X. Quintana, J. M. Otón, V. Tkachenko, G. Abbate
Date: 2009
Number of Pages: 3
Department: Scienze fisiche
Identification Number: 10.1063/1.3064131
Journal or Publication Title: APPLIED PHYSICS LETTERS
Date: 2009
Volume: 39
Page Range: 013508-1-013508-3
Number of Pages: 3
Uncontrolled Keywords: cristalli liquidi, fotonica
Identification Number: 10.1063/1.3064131
Date Deposited: 21 Oct 2010 06:57
Last Modified: 30 Apr 2014 19:43


The director tilt angle distribution in vertically aligned nematic liquid crystal displays has been investigated by means of variable angle spectroscopic ellipsometry. Liquid crystal vertical alignment has been realized by thermal evaporation of SiOx. By changing the deposition angle, it is possible to control the pretilt angle. The director profile inside the sample was inferred by reflection and transmission ellipsometric measurements. The tilt angle distribution inside the cell versus the applied voltage is reported and eventually, comparing it with the simulations from the elastic theory, the anchoring energy has been obtained.


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