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Title: Neodymium-doped laser yttrium oxide ceramics

Journal Article · · Quantum Electronics (Woodbury, N.Y.)
; ; ; ;  [1]; ; ; ; ; ; ; ; ;  [2];  [3];  [4]
  1. Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk (Russian Federation)
  2. Institute of Electrophysics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg (Russian Federation)
  3. ELS-94 Limited Liability Company, Research and Production Center, Moscow (Russian Federation)
  4. Elakom Limited Liability Company, Moscow (Russian Federation)

We studied mechanical, optical, and lasing parameters of neodymium-doped yttrium oxide ceramics synthesised by using a new technology involving the laser synthesis of nanopowders and their magnetic pulsed compaction. The fracture toughness of ceramics to cracks and its microhardness were measured to be K{sub IC} = 0.9-1.4 MPa m{sup 1/2} and H{sub {nu}} = 11.8 GPa, respectively. Ceramic samples sintered in the temperature range from 1550 to 2050{sup 0}C have the porosity (1-150)x10{sup -4}% and the optical loss coefficient {alpha}{sub 1.07} = 0.03-2.1 cm{sup -1} at a wavelength of 1.07 {mu}m. It is shown that such porosity does not affect the optical loss coefficient of light. Lasing at {approx}1.079 {mu}m with a slope efficiency of 15% was obtained in a 1.1-mm-thick sample pumped by laser diodes. (active media. lasers)

OSTI ID:
21466837
Journal Information:
Quantum Electronics (Woodbury, N.Y.), Vol. 38, Issue 9; Other Information: DOI: 10.1070/QE2008v038n09ABEH013637; ISSN 1063-7818
Country of Publication:
United States
Language:
English