28 February 2006 Spatial mapping of fluorescence and Raman spectra across grain boundaries in a transparent Nd-YAG ceramic laser material
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Abstract
We present spatial mapping of fluorescence and Raman spectra across grains and grain boundaries in a transparent Nd-YAG laser material with 5 at% Nd- doping using confocal scanning optical microscopy. These signals do not show any significant spectral shifts, indicating exceptional compositional uniformity in the bulk and grain boundaries. Changes in the intensity of Raman and fluorescent signals between grains and grain boundaries are observed, arising primarily from scattering at the grain boundaries both in the interior and the surface of the ceramic.
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Sang-Ho Lee, Sang-Ho Lee, Joseph P. Stitt, Joseph P. Stitt, William B. White, William B. White, Gary L. Messing, Gary L. Messing, Venkatraman Gopalan, Venkatraman Gopalan, } "Spatial mapping of fluorescence and Raman spectra across grain boundaries in a transparent Nd-YAG ceramic laser material", Proc. SPIE 6100, Solid State Lasers XV: Technology and Devices, 610011 (28 February 2006); doi: 10.1117/12.642405; https://doi.org/10.1117/12.642405
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