6533b826fe1ef96bd128453b

RESEARCH PRODUCT

Supplementary optical phase transition in photorefractive coherent oscillator

Pierre MatheyS. G. OdoulovP. JullienAlexandr ShumelyukO. Shinkarenko

subject

Phase transitionMaterials scienceCondensed matter physicsbusiness.industryScatteringOrganic ChemistryPhysics::OpticsNonlinear opticsPhotorefractive effectGratingAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsOrganic photorefractive materialsInorganic ChemistryOpticsPhysics::Atomic PhysicsElectrical and Electronic EngineeringPhysical and Theoretical ChemistrybusinessPhase conjugationNonlinear Sciences::Pattern Formation and SolitonsSpectroscopy

description

The semilinear photorefractive coherent oscillator with two counterpropagating pump waves may exhibit two optical phase transitions: one from a disordered state of wide-angle photorefractive scattering into a high-ordered state with the immobile photorefractive grating and the other one from the state with immobile grating into the state with two moving photorefractive gratings. We show, both experimentally and from calculations, that two these phase transitions are the second-order phase transitions.

https://doi.org/10.1016/s0925-3467(01)00160-4