Strathprints logo
Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

Interferometric method for determining the sum of the flexoelectric coefficients (e1+e3) in an ionic nematic material

Trabi, C.L. and Brown, C.V. and Smith, A.A.T. and Mottram, N.J. (2008) Interferometric method for determining the sum of the flexoelectric coefficients (e1+e3) in an ionic nematic material. Applied Physics Letters, 92 (22). ISSN 0003-6951

[img]
Preview
PDF (2008_Appl_Phys_Lett_v92_p223509_Trabi_CL.pdf)
2008_Appl_Phys_Lett_v92_p223509_Trabi_CL.pdf - Submitted Version

Download (172kB) | Preview

Abstract

The time-dependent periodic distortion profile in a nematic liquid crystal phase grating has been measured from the displacement of tilt fringes in a Mach-Zehnder interferometer. A 0.2 Hz squarewave voltage was applied to alternate stripe electrodes in an interdigitated electrode geometry. The time-dependent distortion profile is asymmetric with respect to the polarity of the applied voltage and decays with time during each half period due to ionic shielding. This asymmetry in the response allows the determination of the sum of the flexoelectric coefficients (e1+e3) using nematic continuum theory since the device geometry does not possess inherent asymmetry.

Item type: Article
ID code: 13804
Keywords: interferometric method, flexoelectric coefficients, (e(1)+e(3)), ionic nematic material, Probabilities. Mathematical statistics, Physics, Physics and Astronomy (miscellaneous)
Subjects: Science > Mathematics > Probabilities. Mathematical statistics
Science > Physics
Department: Faculty of Science > Mathematics and Statistics
Faculty of Science > Mathematics and Statistics > Mathematics
Depositing user: Mrs Mary McAuley
Date Deposited: 13 Jan 2010 10:47
Last modified: 21 May 2015 11:02
Related URLs:
URI: http://strathprints.strath.ac.uk/id/eprint/13804

Actions (login required)

View Item View Item