Reorientation dynamics of a dual-frequency nematic single crystal with quasi-homeotropic structure

Konshina, E. A.; Иванова, Н. Л.; Parfenov, Peter S.; Fedorov, M. A.

doi:10.1364/jot.77.000770

Cited by 5 publications

(6 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, to describe the dynamics of the variation of the tilt angles of the director under the action of the electric field, it is required to find a self-consistent solution of the system of Eqs. (4)- (7) for the initial values of the angles of the director.…”

Section: Theoretical Methods Of the Researchmentioning

confidence: 99%

“…The switching time in DF NLCs of HAN cells by means of low-frequency voltage was less than the switching time when a high-frequency voltage was applied to the cell. 7 In a twist-cell with hybrid structure of the DF LC-1001, a symmetrical V-shaped optical response was obtained when a sinusoidal voltage with frequencies of 1 and 30 kHz was successively applied. 8 The main purpose of this paper was to show the possibility of a symmetrical optical response of a twist cell with hybrid-aligned structure of a DF NLC, using computer modelling.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Symmetrical optical response in the hybrid-oriented twist structure of a dual-frequency nematic liquid crystal

2014

Self Cite

View full text Add to dashboard Cite

The reorientation dynamics of the director, which affects the optical response of a dual-frequency nematic liquid crystal under the action of an electric field in cells with hybrid-oriented twist structure, has been studied in the framework of continuum theory. The proposed model makes it possible to find the angular distribution of the director for arbitrary values of both the elastic constants and the initial tilt angles. Hydrodynamic flow was neglected in the calculations. It is shown that, for a specific liquid crystal, the turn-on and turn-off times of the cell can be equal when sinusoidal signal pulses with low and high frequencies are applied to it at definite voltages.

show abstract

Section: Theoretical Methods Of the Researchmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Symmetrical optical response in the hybrid-oriented twist structure of a dual-frequency nematic liquid crystal

2014

Self Cite

View full text Add to dashboard Cite

show abstract

“…Such a technique allows one to vary the initial tilt angle of the director from 36° to 84° by modifying the CeO 2 surface nanotexture [7]. The homogeneous alignment of LC molecules was obtained by depositing a C : H layers from acetone vapor in the dc glow dis charge plasma on substrates making an angle of 5°w ith the vertical axis of the device.…”

Section: Methodsmentioning

confidence: 99%

Optical response from dual-frequency hybrid-aligned nematic liquid crystal cells

et al. 2012

Self Cite

View full text Add to dashboard Cite

“…Data obtained on a Solver-BIO microscope with a Smena scanning head were also used for comparison. 9 To investigate the initial slope angle of the LC director, plane-parallel cells with a fixed gap were assembled, consisting of two glass substrates on which a transparent conducting electrode and an orienting oxide layer were successively deposited. The width of the gap between the cells was monitored by measuring the capacitance of the cell before it was filled with LC.…”

Section: Experimental Techniquementioning

confidence: 99%

“…In our earlier paper, 9 we compared the surface textures of cerium oxide layers obtained when the substrates were placed at angles α equal to 5°and 35°with respect to the vertical axis of the vacuum chamber. It can be seen on the resulting images of the surface [Figs.…”

Section: Investigation Of the Relief Of The Orienting Layers By Meansmentioning

confidence: 99%

The orientation of liquid crystals on obliquely deposited layers of SiO_2 and CeO_2

2014

Self Cite

View full text Add to dashboard Cite

The surface texture is compared for silicon oxide and cerium oxide films obtained by oblique laser deposition at identical angles and deposition rates. This paper discusses how the crystallization tendency of the oxides affects the structure and relief of the deposited film-the length and tilt angle of the resulting columnar crystals to the substrate and the presence or absence of ridges of crystallites extended in a direction perpendicular to the deposition direction. The main types of surface relief formed by oblique deposition of oxides are considered, along with the various ways the liquid crystals are oriented by means of these reliefs. It is shown that the ratio of the sizes of the liquid-crystal molecules and the characteristic inhomogeneities of the surface relief serve as the main criterion for their longitudinal or transverse orientation, since orientation with a small contact area is energetically unfavorable.

show abstract

Reorientation dynamics of a dual-frequency nematic single crystal with quasi-homeotropic structure

Cited by 5 publications

References 7 publications

Symmetrical optical response in the hybrid-oriented twist structure of a dual-frequency nematic liquid crystal

Symmetrical optical response in the hybrid-oriented twist structure of a dual-frequency nematic liquid crystal

Optical response from dual-frequency hybrid-aligned nematic liquid crystal cells

The orientation of liquid crystals on obliquely deposited layers of SiO_2 and CeO_2

Contact Info

Product

Resources

About