Solitary wave propagation and steering through light-induced refractive potentials

Journal Article · Tue Jun 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.063811· OSTI ID:21439543

Assanto, Gaetano ^[1]; Skuse, Benjamin D; Smyth, Noel F ^[2]

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1. NooEL-Nonlinear Optics and OptoElectronics Laboratory, Department of Electronic Engineering, INFN-CNISM-University of Rome 'Roma Tre', Via della Vasca Navale 84, I-00146 Rome (Italy)
2. School of Mathematics and Maxwell Institute for Mathematical Sciences, The King's Buildings, University of Edinburgh, Edinburgh EH9 3JZ, Scotland (United Kingdom)

The steering of a self-guided beam in a dye-doped nematic liquid crystal caused by an external illumination (control beam) that induces changes in the refractive index of the medium is theoretically analyzed. The interaction between the control beam and the dye molecules modifies the anchoring of the nematic molecules, so changing the director orientation in the bulk of the medium. Beam evolution is investigated by use of a modulation theory approach. It is found that the beam trajectory is independent of the beam profile, as long as this profile is self-similar. Solutions obtained from the modulation theory approach are in excellent agreement with numerical solutions.

• OSTI ID: 21439543
• Journal Information: Physical Review. A, Vol. 81, Issue 6; Other Information: DOI: 10.1103/PhysRevA.81.063811; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BEAM PROFILES
CONTROL
DOPED MATERIALS
DYES
LIQUID CRYSTALS
MODULATION
MOLECULES
NUMERICAL SOLUTION
ORIENTATION
POTENTIALS
REFRACTIVE INDEX
VISIBLE RADIATION
WAVE PROPAGATION
CRYSTALS
ELECTROMAGNETIC RADIATION
FLUIDS
LIQUIDS
MATERIALS
MATHEMATICAL SOLUTIONS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATIONS