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Proceedings Paper

Crystal growth and spectroscopic studies of Nd-doped apatite crystals as active media for 944.11-nm laser
Author(s): Mikhail A. Noginov; George B. Loutts; B. Lucas; D. Fider; Patrick T. Higgins; A. Truong; Natalia E. Noginova; Norman P. Barnes; Stefan Kueck
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Paper Abstract

We have grown neodymium doped mixed apatite crystals, (SrxBa1- x)5(PO4)3F, Sr5(P1-xVxO4)3F, and Ba5(P1-xVxO4)3F, and spectroscopically studied them as potential gain media for a laser source for atmospheric water sensing operating at 944.11 nm. We conclude that an appropriate apatite host material for a 944.11 nm laser should be a mixture of Sr5(PO4)3F with a small fraction of Ba5(PO4)3F. The precise wavelength tuning around 944.11 nm can be accomplished by varying the host composition, temperature, and threshold population inversion. In apatite crystals of mixed composition, the amplified spontaneous emission loss at 1.06 micrometers is predicted to be significantly smaller than that in the end members.

Paper Details

Date Published: 14 April 2000
PDF: 12 pages
Proc. SPIE 3929, Solid State Lasers IX, (14 April 2000); doi: 10.1117/12.382788
Show Author Affiliations
Mikhail A. Noginov, Norfolk State Univ. (United States)
George B. Loutts, Norfolk State Univ. (United States)
B. Lucas, Norfolk State Univ. (United States)
D. Fider, Norfolk State Univ. (United States)
Patrick T. Higgins, Norfolk State Univ. (United States)
A. Truong, NASA Sharp Plus Program/Norfolk State Univ. (United States)
Natalia E. Noginova, Norfolk State Univ. (United States)
Norman P. Barnes, NASA Langley Research Ctr. (United States)
Stefan Kueck, Institut fuer Laser-Physik (Germany)

Published in SPIE Proceedings Vol. 3929:
Solid State Lasers IX
Richard Scheps, Editor(s)

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