Journal of the Optical Society of America B · 1994 · 173 citations · 16 references
Natural SciencesMaterials SciencePhysicsOpticsSolid State PhysicsSpectroscopyLaser Host MaterialsLaser PhysicsLaser SpectroscopyOptical Properties Of MaterialsOptical SpectroscopyRare-earth-doped MaterialsApatite FormationCrystal Host MaterialsOptical Properties
Sr5(PO4)3F (S-FAP) has been investigated as a new Yb-doped laser crystal belonging to the apatite structural family. The spectroscopy of the Yb3+ ion and the laser properties of the medium have been investigated. The maximum absorption cross section of Yb in S-FAP is 8.6 × 10−20 cm2, and the maximum emission cross section is 7.3 × 10−20 cm2. The measured emission lifetime of Yb3+ is 1.26 ms. An Yb:S-FAP laser has been demonstrated with a Ti:sapphire laser pump operating at 899 nm. The Yb:S-FAP laser was measured to have slope efficiencies as high as 71%. The spectroscopy and laser studies are reported, as well as certain thermal, mechanical, and optical properties.
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