By Topic

Characterization of Disordered Melilite {\rm Nd}{:}{\rm SrLaGa}_{3}{\rm O}_{7} Crystal

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

6 Author(s)
Yuanyuan Zhang ; State Key Lab. of Crystal Mater., Shandong Univ., Jinan, China ; Huaijin Zhang ; Haohai Yu ; Shangqian Sun
more authors

A disordered Nd:SrLaGa3O7 (Nd:SLGM) laser crystal was grown by the Czochralski method. The thermal properties, including the average linear thermal expansion coefficient, thermal diffusivity, specific heat, and thermal conductivity were measured. Thermal conductivity values along the - and -axes were found to be 1.95 and 1.70 W m-1 K-1, respectively, near 30°C, neither of which are as high as the previously reported value of 11 W m-1 K-1. It was found that the thermal conductivity increases with increasing temperature, which is similar to the behavior of glass. The polarized absorption and emission spectra were measured at room temperature, and Judd-Ofelt analysis was carried out to calculate the fluorescence branching ratios and the fluorescence lifetime. The stimulated emission cross-section for the 4F3/24I11/2 transition was calculated to be 1.0×10-19 cm2. Finally, a diode-pumped laser experiment at 1.06 μm was performed. The highest peak power achieved was 1.16 W with an optical slope efficiency of 11%. The results indicate that Nd:SLGM is a promising material for use as disordered laser medium.

Published in:

Quantum Electronics, IEEE Journal of  (Volume:47 ,  Issue: 12 )