Soviet Journal of Quantum Electronics · 1975 · 43 citations · 0 references
Optical MaterialsEngineeringLaser ScienceLaser PhysicsLaser ApplicationsAbsorption SpectroscopyLaser MaterialSuper-intense LasersChemistryHigh-power LasersOptical PropertiesSolid-state LasersChemical LasersPhotonicsInfrared RangeParametric ConversionPhysicsInfrared SpectroscopyNon-linear OpticRadiative AbsorptionLaser DesignLaser ClassificationLaser PhotochemistryNatural SciencesSpectroscopyNonlinear Gase CrystalApplied PhysicsNd3+ LaserGas LasersLaser-solid Interactions
Radiations emitted by CO and CO2 lasers were converted parametrically in a nonlinear GaSe crystal by mixing the radiation of one of these lasers with the radiation emitted by a YAG:Nd3+ laser. The phasematching angles were determined for the eo–e and oo–e interactions. The emission spectrum of a CO2 laser was recorded photographically at the sum frequency. A comparison was made of GaSe with other nonlinear crystals suitable for infrared range.