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Structural and photoluminescence properties of Cr2+:ZnSe films deposited by radiofrequency magnetron co-sputtering for mid-infrared microlaser applications

Abstract : 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.
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https://hal-cea.archives-ouvertes.fr/cea-00374035
Contributor : Chantal Brassy <>
Submitted on : Tuesday, April 7, 2009 - 5:05:40 PM
Last modification on : Thursday, February 7, 2019 - 5:31:38 PM

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  • HAL Id : cea-00374035, version 1

Citation

Nicolas Vivet, Magali Morales, Marc Levalois, Xavier Portier, Jean-Louis Doualan. Structural and photoluminescence properties of Cr2+:ZnSe films deposited by radiofrequency magnetron co-sputtering for mid-infrared microlaser applications. Materials Science and Engineering: B, Elsevier, 2008, 146, pp.236-240. ⟨cea-00374035⟩

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