Optical properties of cubic hafnia stabilized with yttria

Journal Article · Thu Feb 01 04:00:00 EST 1990 · Applied Optics; (USA)

DOI:https://doi.org/10.1364/AO.29.000604· OSTI ID:6910874

Wood, D L; Nassau, K; Kometani, T; Nash, D ^[1]

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1. AT T Bell Laboratories, Murray Hill, New Jersey 07974-2070 (US)

The composition, transparency, refractive index, and infrared reflectance of yttria-stabilized cubic hafnia ({ital c}-HfO{sub 2}) single crystals were measured. The material is transparent from the ultraviolet to the mid-infrared and for 9.6-mol % Y{sub 2}O{sub 3}, the index is slightly smaller than for comparable cubic zirconia {ital c}-ZrO{sub 2} or for diamond, but the dispersion ({ital n}{sub {ital F}} {minus} {ital n}{sub {ital C}} = 0.02811) is larger than that of diamond. The index vs wavelength from 0.36 {mu}m in the ultraviolet to 5.0 {mu}m in the infrared is represented by a three-term Sellmeier formula to 1 {times} 10{sup {minus}4}. The temperature dependence of refractive index is similar to that of {ital c}-ZrO{sub 2}. The infrared reflectance spectrum is fitted in a classical dispersion analysis with seven oscillators derived from the transverse optical phonon as well as acoustic frequencies with splittings due to lowered symmetry derived from the randomly distributed stabilizer ions.

• OSTI ID: 6910874
• Journal Information: Applied Optics; (USA), Journal Name: Applied Optics; (USA) Vol. 29:4; ISSN 0003-6935; ISSN APOPA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
CHALCOGENIDES
CHEMICAL COMPOSITION
CRYSTALS
ELECTROMAGNETIC RADIATION
HAFNIUM COMPOUNDS
HAFNIUM OXIDES
INFRARED RADIATION
MONOCRYSTALS
OPTICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIATIONS
REFRACTORY METAL COMPOUNDS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
ULTRAVIOLET RADIATION
VISIBLE RADIATION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES