Sm2+-doped silicate glasses: sol-gel processing and persistent spectral hole burning

Masayuki Nogami; Yoshihiro Abe

doi:10.1117/12.279162

2 October 1997 Sm²⁺-doped silicate glasses: sol-gel processing and persistent spectral hole burning

Masayuki Nogami, Yoshihiro Abe

Proceedings Volume 3136, Sol-Gel Optics IV; (1997) https://doi.org/10.1117/12.279162
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

Sm²⁺-doped glasses in the system of Al₂O₃-SiO₂ were prepared by the sol-gel processing of metal alkoxides and the reaction with H₂ gas at 800 degrees Celsius, of which hole burning properties were investigated. Sm³⁺ ions-containing glasses prepared by a sol-gel method were reacted with H₂ gas to form the Sm²⁺ ions. Fluorescence line narrowing spectra of the ⁵D₀ yields ⁷F₁ transition were analyzed to study the local structure surrounding the Sm²⁺ ion. It is concluded that the Sm²⁺ ions are closely coordinated with nine oxygens of the AlO₆ group in aluminosilicate glasses and the addition of Al³⁺ ions into glass induces an increase in the coordination number of the Sm²⁺. The fluorescence intensity of the Sm²⁺ and Sm³⁺ ions considerably increases in glasses containing more than 5 mol% Al₂O₃. The holes were burned in the ⁷F₀ yields ⁵D₀ line of the Sm²⁺ ions using a DCM dye laser at 77 K. The hole depth increased with increasing the laser irradiation time, reaching up to approximately 15% of the total intensity within a few hundred seconds. The hole width was 3 cm^-1 full width at half maximum at 77 K and increased with increasing temperature.

Citation Download Citation

Masayuki Nogami and Yoshihiro Abe "Sm²⁺-doped silicate glasses: sol-gel processing and persistent spectral hole burning", Proc. SPIE 3136, Sol-Gel Optics IV, (2 October 1997); https://doi.org/10.1117/12.279162

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