Zobrazeno 1 - 10
of 118
pro vyhledávání: '"R. S. Akopyan"'
Autor:
R. S. Akopyan, A. V. Loboda
Publikováno v:
Functional Analysis and Its Applications. 53:124-128
Realizations of five-dimensional Lie algebras as algebras of holomorphic vector fields on homogeneous real hypersurfaces of a three-dimensional complex space are studied. In view of already known results, in the problem of describing such varieties o
Publikováno v:
Technical Physics. 49:733-738
Recording of a diffraction grating in a photopolymerizable material in the presence of a liquid crystal is studied theoretically in terms of the polymerization equation with allowance for diffusion. A model explaining the occurrence of recording dela
Publikováno v:
Quantum Electronics. 34:267-271
The possibility of exciting convective motions with a toroidal symmetry in a disordered liquid-crystal cell with an open surface, which is locally heated by a Gaussian laser beam, is demonstrated experimentally. A perturbation of the free surface of
Publikováno v:
Quantum Electronics. 33:81-89
The possibility of excitation of convective motions of the Rayleigh — Benard and Marangoni type in isotropic liquids and nematic liquid crystals upon absorption of light with a spatially periodic intensity distribution is demonstrated theoretically
Publikováno v:
Journal of Applied Physics. 90:3371-3376
Thermomechanical effects in hybrid and cylindrical-hybrid oriented nematic liquid crystals (NLC), as well as thermomechanical effects in NLC with a homogeneous director distribution induced by quasistatic or light electric fields, are observed and in
Publikováno v:
SPIE Proceedings.
In this paper we report both experimental and theoretical results on Rayleigh-Benard and Marangoni convection instability experiments in isotropic liquids and nematic liquid crystals. This instability is driven and controlled by medium absorbing a li
Publikováno v:
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics. 49(4)
Absorption mediated effects provide the strongest mechanisms of optically induced reorientation of liquid crystals (LC's). The following mechanism of transformation of absorbed light energy into reorientation of LC's is theoretically discussed in the
Autor:
R. S. Akopyan, Yu. S. Chilingarian
Publikováno v:
1994 Conference on Lasers and Electro-Optics Europe.
The possibility of the forced generation of regular hydrodynamic convective motions in a nematic liquid crystal with homeotropic boundary conditions and under the action of the radiation pressure of an acoustic wave with a periodic transverse intensi
Hysteresis upon light-induced hydrodynamic reorientation of the director of a nematic liquid crystal
Publikováno v:
Quantum Electronics. 30:745-746
Oscillations and hysteresis in the behaviour of the director of a nematic liquid crystal were observed upon its light-induced hydrodynamic reorientation caused by direct volume expansion. The light propagated through the liquid crystal placed between
Publikováno v:
Technical Physics. 44:462-463
A thermomechanical flow of uniformly oriented nematic liquid crystal induced by a quasistatic electric field is observed. This flow occurs when the electric field strength exceeds the static Freedericksz transition threshold. The effect is attributed