The pyroelectric technique, called the laser-intensity-modulation method, was used for investigations of the spatial distribution of the pyroelectric coefficient that gives information about the director profile in ferroelectric liquid crystal (FLC) cells. The pyroelectric current from a cell, illuminated by the intensity-modulated laser beam, was measured as a function of the modulation frequency. The Tikhonov regularization procedure was used for the deconvolution of the pyroelectric current spectrum into the spatial profile of the pyroelectric coefficient. It was found that in the surface-stabilized ferroelectric liquid crystal (SSFLC) structure with a splayed director profile, the flexoelectric contribution to the local polarization has comparable magnitude with the spontaneous one. The effective flexoelectric coefficient of the investigated FLC material and the flexoelectric polarization of the SSFLC structure were determined.
Skip Nav Destination
,
Article navigation
1 January 2003
Research Article|
January 01 2003
Measurement of the polarization profile across a surface-stabilized ferroelectric liquid crystal cell using the pyroelectric laser-intensity-modulation method
N. M. Shtykov;
N. M. Shtykov
Department of Electronic and Electrical Engineering, Trinity College, University of Dublin, Dublin 2, Ireland
Institute of Crystallography, Russian Academy of Sciences, 117333 Moscow, Leninsky prosp. 59, Russia
Search for other works by this author on:
J. K. Vij
J. K. Vij
Department of Electronic and Electrical Engineering, Trinity College, University of Dublin, Dublin 2, Ireland
Search for other works by this author on:
N. M. Shtykov
,
J. K. Vij
Department of Electronic and Electrical Engineering, Trinity College, University of Dublin, Dublin 2, Ireland
J. Appl. Phys. 93, 159–164 (2003)
Article history
Received:
May 28 2002
Accepted:
September 25 2002
Citation
N. M. Shtykov, J. K. Vij; Measurement of the polarization profile across a surface-stabilized ferroelectric liquid crystal cell using the pyroelectric laser-intensity-modulation method. J. Appl. Phys. 1 January 2003; 93 (1): 159–164. https://doi.org/10.1063/1.1522746
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
A step-by-step guide to perform x-ray photoelectron spectroscopy
Grzegorz Greczynski, Lars Hultman
Piezoelectric thin films and their applications in MEMS: A review
Jinpeng Liu, Hua Tan, et al.
Decoding diffraction and spectroscopy data with machine learning: A tutorial
D. Vizoso, R. Dingreville
Related Content
Bistability in deformed helix ferroelectric liquid crystal
J. Appl. Phys. (September 2004)
Director tilting of liquid crystals on photoisomerizable polyimide alignment layers doped with homeotropic surfactant
J. Appl. Phys. (August 1999)
Unipolar “V-shaped” switching in chiral smectic C ( Sm – C * ) liquid crystals bounded by an ion-store film
J. Appl. Phys. (October 2002)
How to achieve zigzag free Sm-C * state with a low pretilt angle: A numerical calculation
J. Appl. Phys. (November 2001)
Influence of a surface electric field on the anchoring characteristics of nematic phases at rubbed polyimides
J. Appl. Phys. (September 1999)