Journal
OPTICAL MATERIALS
Volume 31, Issue 8, Pages 1144-1150Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optmat.2008.12.009
Keywords
Transparent ceramics; Anomalous dispersion; Transparent tetragonal zirconia; Transmission at extreme wave lengths
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The overview focuses on inherent optical properties, governed by composition and the state of the crystal lattice, and on the interference of these properties with the microstructural optimization of transparent ceramics (e.g. the dependence of the tolerable pore size or grain size on the refractive index). Starting with the general difference between the dispersive performances n(lambda) of glasses and transparent ceramics, examples will demonstrate the use of compositional changes for tuning the relationship of index, Abbe number, and anomalous dispersion. Perowskites and cubic zirconia are known candidates for such developments, but their mechanical strength is low. Therefore, physical conditions are investigated for bringing translucent tetragonal ZrO(2) to transparency. Another field of increasing interest is transparency at extreme wave lengths affected by point defects, associated absorption and scattering mechanisms. (C) 2008 Elsevier B.V. All rights reserved.
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