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Title: Ytterbium- and neodymium-doped vanadate laser hose crystals having the apatite crystal structure

Yb.sup.3+ and Nd.sup.3+ doped Sr.sub.5 (VO.sub.4).sub.3 F crystals serve as useful infrared laser media that exhibit low thresholds of oscillation and high slope efficiencies, and can be grown with high optical quality. These laser media possess unusually high absorption and emission cross sections, which provide the crystals with the ability to generate greater gain for a given amount of pump power. Many related crystals such as Sr.sub.5 (VO.sub.4).sub.3 F crystals doped with other rare earths, transition metals, or actinides, as well as the many structural analogs of Sr.sub.5 (VO.sub.4).sub.3 F, where the Sr.sup.2+ and F.sup.- ions are replaced by related chemical species, have similar properties.
 [1];  [2];  [3];  [4];  [5]
  1. (Castro Valley, CA)
  2. (Fremont, CA)
  3. (Manteca, CA)
  4. (Pleasanton, CA)
  5. (Oviedo, FL)
Issue Date:
OSTI Identifier:
United States of America as represented by United States (Washington, DC) LLNL
Patent Number(s):
US 5341389
Contract Number:
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Country of Publication:
United States
ytterbium-; neodymium-doped; vanadate; laser; crystals; apatite; crystal; structure; doped; sr; vo; serve; useful; infrared; media; exhibit; thresholds; oscillation; slope; efficiencies; grown; optical; quality; possess; unusually; absorption; emission; sections; provide; ability; generate; amount; pump; power; related; rare; earths; transition; metals; actinides; structural; analogs; replaced; chemical; species; similar; properties; infrared laser; rare earths; transition metals; transition metal; rare earth; chemical species; crystal structure; chemical specie; optical quality; laser media; pump power; crystals doped; crystals serve; /372/252/