Neodymium-doped laser yttrium oxide ceramics
- Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk (Russian Federation)
- Institute of Electrophysics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg (Russian Federation)
- ELS-94 Limited Liability Company, Research and Production Center, Moscow (Russian Federation)
- 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
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Related Subjects
CERAMICS
CRACKS
DOPED MATERIALS
FRACTURE PROPERTIES
LASERS
MICROHARDNESS
NANOSTRUCTURES
NEODYMIUM
POROSITY
POWDERS
PRESSURE RANGE GIGA PA
PRESSURE RANGE MEGA PA
TEMPERATURE RANGE
VISIBLE RADIATION
WAVELENGTHS
YTTRIUM OXIDES
CHALCOGENIDES
ELECTROMAGNETIC RADIATION
ELEMENTS
HARDNESS
MATERIALS
MECHANICAL PROPERTIES
METALS
OXIDES
OXYGEN COMPOUNDS
PRESSURE RANGE
RADIATIONS
RARE EARTHS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS