Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Analytical expression for the fringe intensities of a nematic grating excited electrohydrodynamically in the dielectric mode

Not Accessible

Your library or personal account may give you access

Abstract

A formula has been derived for predicting the intensities of the first-order fringes that result from the illumination of a periodically reoriented nematic liquid-crystal layer that is excited electrohydrodynamically in the dielectric mode. The agreement between the predictions of the derived formula and those of the more rigorous theory is excellent. It turns out that the intensities of the first-order fringes are proportional to the square of the maximum angle formed between the director and its orientation direction in the undistorted state. It also turns out that these intensities are highly sensitive functions of the incidence angle of the monochromatic light beam that is illuminating the nematic layer; they exhibit two pronounced maxima that correspond to two different incidence angles that are determined by the material and distortion parameters as well as by the wavelength of the illuminating beam. The derived formula is an essential tool for monitoring the motion of the nematic director during electrohydrodynamic excitation in the dielectric mode.

© 2001 Optical Society of America

Full Article  |  PDF Article
More Like This
Linearized wave-optical approach to the grating effect of a periodically distorted nematic liquid crystal layer

H. M. Zenginoglou and J. A. Kosmopoulos
J. Opt. Soc. Am. A 14(3) 669-675 (1997)

Geometrical optics approach to the nematic liquid crystal grating: numerical results

J. A. Kosmopoulos and H. M. Zenginoglou
Appl. Opt. 26(9) 1714-1721 (1987)

Geometrical optics approach to the obliquely illuminated nematic liquid crystal diffraction grating

H. M. Zenginoglou and J. A. Kosmopoulos
Appl. Opt. 27(18) 3898-3901 (1988)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (27)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved