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RESEARCH PRODUCT
Laser-induced anisotropy in terbium-gallium garnet
S. GonzalezX. Chensubject
BirefringenceMaterials sciencePhysics and Astronomy (miscellaneous)Condensed matter physicsUniaxial crystalbusiness.industryGeneral EngineeringPhysics::OpticsGeneral Physics and Astronomychemistry.chemical_elementTerbiumLaserTerbium gallium garnetlaw.inventionCrystalOptical axischemistry.chemical_compoundOpticschemistrylawbusinessRefractive indexdescription
Ga5O12 crystal when illuminated at the terbium ion resonance, becomes optically uniaxial. The optical axis is found to be along the beam-propagation axis. The origin of this symmetry breakdown is a thermal effect. Our observation of a conoscopic pattern is accounted for by a quadratic stress and refractive index distribution model. By spatial integration of the conoscopic pattern, the laser-induced stress birefringence variation as a function of the incident beam power is determined.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-11-01 | Applied Physics B: Lasers and Optics |