Journal of materials research/Pratt's guide to venture capital sources · 2013 · 20 citations · 36 references
Natural SciencesMaterials EngineeringMaterials ScienceCeramic MaterialsOptical MaterialsOpticsGlass MaterialsOptical CeramicsOptical GlassesOptoelectronic MaterialsRare-earth-doped MaterialsUpconversion MaterialsFrequency UpconversionGlass-ceramicsRare Earth-doped GlassesRare-earth-doped GlassesUpconversion In Glasses
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Optical Absorption Intensities of Rare-Earth Ions
B. R. Judd · Physical Review · 1962 · 8K citations · Full text
Natural Sciences, Chemistry, Physics +14
Intensities of Crystal Spectra of Rare-Earth Ions
G. S. Ofelt · The Journal of Chemical Physics · 1962 · 7.4K citations