Electro-optic phenomena in nematic liquid crystals studied experimentally and by Monte-Carlo simulations

2001 ◽  
Vol 90 (4) ◽  
pp. 1836-1842 ◽  
Author(s):  
K. Komorowska ◽  
G. Pawlik ◽  
A. C. Mitus ◽  
A. Miniewicz
Keyword(s):  
Monte Carlo ◽  
Liquid Crystals ◽  
Monte Carlo Simulations ◽  
Nematic Liquid Crystals ◽  
Electro Optic

Ordering dynamics of nematic liquid crystals: Monte Carlo simulations

2012 ◽  
Vol 100 (3) ◽  
pp. 36004 ◽  
Author(s):  
Amrita Singh ◽  
Shaista Ahmad ◽  
Sanjay Puri ◽  
Shri Singh
Keyword(s):  
Monte Carlo ◽  
Liquid Crystals ◽  
Monte Carlo Simulations ◽  
Nematic Liquid Crystals

scholarly journals Addressable Refraction and Curved Soliton Waveguides Using Electric Interfaces

2019 ◽  
Vol 9 (2) ◽  
pp. 347 ◽  
Author(s):  
Eugenio Fazio ◽  
Massimo Alonzo ◽  
Alessandro Belardini
Keyword(s):  
Liquid Crystals ◽  
Nematic Liquid Crystals ◽  
Total Reflection ◽  
Spatial Solitons ◽  
The Past ◽  
Curved Structures ◽  
Electro Optic ◽  
Propagation Losses ◽  
Complex Circuits

A great deal of interest over the years has been directed to the optical space solitons for the possibility of realizing 3D waveguides with very low propagation losses. A great limitation in their use for writing complex circuits is represented by the impossibility of making curved structures. In the past, solitons in nematic liquid crystals, called nematicons, were reflected on electrical interfaces, and more recently photorefractive spatial solitons have been, as well. In the present work, we investigate refraction and total reflection of spatial solitons with saturable electro-optic nonlinearity, such as the photorefractive ones, on an electric wall acting as a reflector. Using a custom FDTD code, the propagation of a self-confined beam was analyzed as a function of the applied electric bias. The electrical reflector was simulated by applying different biases in two adjacent volumes. We observed both smaller and larger angles of refraction, up to the critical π/2-refraction condition, and then the total reflection. The radii of curvature of the associated guides can be varied from centimeters down to hundreds of microns. The straight guides showed losses as low as 0.07 dB/cm as previously observed, while the losses associated with single curves were estimated to be as low as 0.2 dB.

scholarly journals Singlet Excitation Transfer in Columnar Liquid Crystals Studied by Monte Carlo Simulations

1996 ◽  
Vol 100 (26) ◽  
pp. 10999-11004 ◽  
Author(s):  
Hervé Sigal ◽  
Dimitra Markovitsi ◽  
Lazaros K. Gallos ◽  
Panos Argyrakis
Keyword(s):  
Monte Carlo ◽  
Liquid Crystals ◽  
Monte Carlo Simulations ◽  
Excitation Transfer
Sign in / Sign up

Export Citation Format

Share Document