Optics and Spectroscopy · 1978 · 19 citations · 0 references
Natural SciencesMaterials SciencePhysicsOptical MaterialsOpticsSpectroscopyEmission SpectroscopyLuminescent MaterialsNonlinear Optical MaterialsOptical Properties Of SolidsOptical SpectroscopyRare-earth-doped MaterialsOptical Absorption SpectraOptical Emission SpectraOptical Gain MaterialsRare-earth-doped CrystalsRare-earth-doped Luminescent Materials