Journal
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY
Volume 146, Issue 1-3, Pages 236-240Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.mseb.2007.07.014
Keywords
sputtering; thin films; chromium; zinc selenide; infrared laser
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Highly crystallised Cr2+:ZnSe cubic films with a strong <1 1 1> orientation were deposited at room temperature by radiofrequency magnetron co-sputtering. The effect of the sputtering power and the chromium quantity on the structural and optical properties of the deposited films has been investigated by means of X-ray diffraction and reflectivity, transmission electron microscopy and photoluminescence studies. The room temperature photoluminescence spectra under direct excitation (1850 nm) revealed that chromium has been incorporated in the Cr2+ active state and the optimal deposition parameters have been determined. These results pave the route to the fabrication of future optically or electrically pumped microlaser broadly tunable in the mid-infrared. (C) 2007 Published by Elsevier B.V.
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