Elsevier, Optical Materials, 7(31), p. 1071-1074
DOI: 10.1016/j.optmat.2007.12.017
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This paper reports about recent advances in optical nanomaterials and planar microcavities. Bottom-up fabrication, optical and spectroscopic assessment of Er3+-activated SiO2–HfO2 waveguide glass ceramic are presented. Concerning confined structures, the rf sputtering based fabrication of an Er3+-activated microcavity with a quality factor of 171 using oxide-based dielectric materials is demonstrated.