6533b862fe1ef96bd12c7531

RESEARCH PRODUCT

Manifestation of Curie-Weiss law for optical phase transition

P. JullienS. G. OdoulovPierre MatheyO. Shinkarenko

subject

Quantum opticsPhysicsLinear function (calculus)Phase transitionCurie–Weiss lawPhysics and Astronomy (miscellaneous)Condensed matter physicsOscillationGeneral EngineeringPhysics::OpticsGeneral Physics and AstronomyNonlinear opticsPhotorefractive effectRefractive index

description

Considerable slowing down is observed for both the temporal development of the coherent oscillation slightly above the threshold and the refractive index grating decay slightly below the threshold for a semilinear photorefractive oscillator with two counter-propagating pump waves. It is shown that in the vicinity of the threshold the reciprocal characteristic time is a linear function of deviation from the threshold coupling strength. This behaviour is similar to an empirical Curie–Weiss law and points to the analogy of the oscillation threshold to a second-order phase transition.

yearjournalcountryeditionlanguage
2001-11-01Applied Physics B: Lasers and Optics
https://doi.org/10.1007/s003400100728