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Accession Number:
ADA278408
Title:
Development of Materials for Spectral Hole Burning Applications
Descriptive Note:
Final rept. 16 Jun 93-15 Feb 94,
Corporate Author:
CRYSTAL SYSTEMS INC SALEM MA
Report Date:
1994-02-28
Pagination or Media Count:
28.0
Abstract:
It was intended to evaluate growth of europium-doped yttrium aluminum oxide EuY3Al5O12, EuYAG and europium-doped yttrium silicate EuY2SiO5, EuYSO crystals to characterize these crystals for spectral hole-burning application. After technical discussions at a topical Workshop and agreement of the Technical Monitor, the scope of the program was enlarged to include growth of rare-earth doped mixed-oxide crystals and growth of EuYSO was de-emphasized as these crystals-were available for characterization. The experimental effort involved producing YAG, YSO and YAlO3 YALO host crystals and the dopants Eu, Tm, Tb and Ce. High optical quality crystals of EuYAG, TmYAG, TbYAG and CeYAG were fabricated from 6 cm diameter boules grown using the Heat Exchanger Method HEM. The samples were characterized for absorption as a function of wavelength at-SRI International, Menlo Park, CA. Previously-grown CeGd3Sc2Al3O12CeGSAG crystal was characterized also. The available data is insufficient for choosing a crystal for spectral hole burning application. It is necessary to explore other rare-earth doped mixed oxide crystals and carry out more characterization.
Distribution Statement:
APPROVED FOR PUBLIC RELEASE
