Journal
JOURNAL OF LUMINESCENCE
Volume 129, Issue 5, Pages 461-464Publisher
ELSEVIER
DOI: 10.1016/j.jlumin.2008.11.013
Keywords
Porous silicon; Waveguides; Laser dye; Photoluminescence; Optical losses
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Oxidized porous silicon optical Planar waveguides were elaborated and impregnated with rhodamine B and rhodamine 6G. The waveguiding, absorption, and photoluminescence properties of these impregnated waveguides were studied. Successful impregnation of the structure with laser dyes is shown from photoluminescence and reflectivity measurements. Furthermore, the reflectivity spectra prove the homogenous incorporation of both dye molecules inside the pores of the matrices. The refractive indices of waveguide layers were determined before and after dye impregnation to indicate the conservation of guiding conditions. The optical losses in the visible wavelengths are studied as a function of dye concentration. The dye absorption is the main reason for these losses. (C) 2009 Elsevier B.V. All rights reserved.
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