Near Infrared Luminescence Properties of Mn(5+): Ca5(PO4)3FWe report a spectroscopic investigation of Mn(5+) doped Ca5(PO4)(sub 3)F or FAP. Mn(5+) doped crystals have recently attracted world wide attention for potential solid-state laser applications. Following optical excitation of Mn: FAP with the 600 nm output of a Nd: YAG OPO laser system, we observed a strong near infrared luminescence centered at around 1150 nm. The room temperature luminescence decay time was measured to be approximately 635 microseconds. We attribute the infrared luminescence to the(1)E yields (3)A2 transition of tetrahedrally coordinated Mn5+ ions located in a strong crystal field environment. Absorption, luminescence and lifetime data of Mn: FAP will be presented and discussed.
Davis, Valetta R. (Hampton Univ. VA United States)
Hoemmerich, Uwe (Hampton Univ. VA United States)
Loutts, George B. (Norfolk State Univ. VA United States)
August 17, 2013
January 1, 1997
Publication: The First National Student Conference: NASA University Research Centers at Minority Institutions