9 May 2014 Measurement of energy transfer upconversion in Nd:YAG via the z-scan technique
Author Affiliations +
Abstract
We present the determination of the energy transfer upconversion (ETU) coefficient for Nd:YAG via the z-scan technique, achieved by studying the irradiance dependence of the transmission of a pump laser tuned to the absorption peak around 808 nm. A spatially dependent two-level rate equation model has been utilized to predict the transmission dependence as a function of the sample’s position in the z-scan experiment, with the ETU coefficient the only free parameter. Comparing experimental results with the model’s output, the ETU coefficient for 1 at.% Nd:YAG is determined to be 5.1 ± 0.4 x 10-17 cm3/s.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
R. P. Yan, S. J. Yoon, S. J. Beecher, J. I. Mackenzie, "Measurement of energy transfer upconversion in Nd:YAG via the z-scan technique", Proc. SPIE 9135, Laser Sources and Applications II, 913525 (9 May 2014); doi: 10.1117/12.2054307; https://doi.org/10.1117/12.2054307
PROCEEDINGS
6 PAGES


SHARE
Back to Top