Characterization of zirconia- and niobia-silica mixture coatings produced by ion-beam sputtering

Journal Article · Sun Mar 20 00:00:00 EDT 2011 · Applied Optics

DOI:https://doi.org/10.1364/AO.50.00C188· OSTI ID:22036600

Melninkaitis, Andrius; Tolenis, Tomas; Mazule, Lina; Mirauskas, Julius; Sirutkaitis, Valdas; Mangote, Benoit; Xinghai, Fu; Zerrad, Myriam; Gallais, Laurent; Commandre, Mireille; Kicas, Simonas; Drazdys, Ramutis

ZrO{sub 2}-SiO{sub 2} and Nb{sub 2}O{sub 5}-SiO{sub 2} mixture coatings as well as those of pure zirconia (ZrO{sub 2}), niobia (Nb{sub 2}O{sub 5}), and silica (SiO{sub 2}) deposited by ion-beam sputtering were investigated. Refractive-index dispersions, bandgaps, and volumetric fractions of materials in mixed coatings were analyzed from spectrophotometric data. Optical scattering, surface roughness, nanostructure, and optical resistance were also studied. Zirconia-silica mixtures experience the transition from crystalline to amorphous phase by increasing the content of SiO{sub 2}. This also results in reduced surface roughness. All niobia and silica coatings and their mixtures were amorphous. The obtained laser-induced damage thresholds in the subpicosecond range also correlates with respect to the silica content in both zirconia- and niobia-silica mixtures.

• OSTI ID: 22036600
• Journal Information: Applied Optics, Vol. 50, Issue 9; Other Information: (c) 2011 Optical Society of America; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6935
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AMORPHOUS STATE
COATINGS
DAMAGE
ENERGY GAP
ION BEAMS
LASER RADIATION
MIXTURES
NANOSTRUCTURES
NIOBATES
NIOBIUM OXIDES
REFRACTIVE INDEX
ROUGHNESS
SILICON OXIDES
SPECTROPHOTOMETRY
SPUTTERING
SURFACES
ZIRCONIUM OXIDES