13 April 2000 Persistent spectral hole burning of rare-earth ions doped in sol-gel glasses
Author Affiliations +
Proceedings Volume 3942, Rare-Earth-Doped Materials and Devices IV; (2000) https://doi.org/10.1117/12.382878
Event: Symposium on Integrated Optoelectronics, 2000, San Jose, CA, United States
We demonstrate a sol-gel method for preparing Eu3+ and Sm2+ ions-doped glasses exhibiting persistent spectral hole burning at high temperature. Glasses having the composition of Eu3+ or Sm2+-doped Al2O3-SiO2 have been prepared by the hydrolysis of metal alkoxides and heating at 800 degree(s)C in air or hydrogen gas atmosphere, respectively. The persistent spectral hole burning is measured within the 7F0-5D0 transition band. For the glasses containing OH bonds, the hole is formed by the photoinduced rearrangement of the OH bonds surrounding the Eu3+ or Sm2+ ions, and is thermally refilled and erased above approximately 200 K. On the other hand, the glasses heated in hydrogen gas show the hole spectra above approximately 200 K. The hole depth is independent of the temperature and is approximately 7 and 15% of the total intensity at room temperature for the Eu3+ and Sm2+ ions-doped glasses, respectively. The proposed mechanism is the electron transfer between the rare-earth ions and the defect centers related with Al3+ ions in glass network.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Masayuki Nogami, Masayuki Nogami, } "Persistent spectral hole burning of rare-earth ions doped in sol-gel glasses", Proc. SPIE 3942, Rare-Earth-Doped Materials and Devices IV, (13 April 2000); doi: 10.1117/12.382878; https://doi.org/10.1117/12.382878

Back to Top