ISSN:
1432-0630
Keywords:
PACS: 81.15Fg; 68.55Nq; 78.20Ci
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Abstract. Pure and europium doped alumina waveguides have been prepared by Pulsed Laser Deposition using a KrF excimer laser at oxygen pressures in the range from 10-7 to 0.1 mbar. The composition of the films and the doping ion concentration were determined by Rutherford Backscattering Spectroscopy. From X-ray diffraction measurements, a progressive growth of γ-Al2O3 crystallites is observed as the oxygen pressure decreases. After annealing treatment, the alumina films are constituted of α-Al2O3 crystallites while europium doped alumina films remain constituted of γ-Al2O3 crystallites. The films have optical waveguiding properties. The mean refractive index of the film increases as oxygen pressure decreases.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s003390051518
Permalink