Room-temperature persistent spectral hole burning of rare-earth-ion-doped glasses prepared by sol-gel process

Masayuki Nogami; Tomokatsu Hayakawa; Tomotaka Ishikawa; Takehito Nagakura; Toshihiro Kasuga

doi:10.1117/12.384329

2 May 2000 Room-temperature persistent spectral hole burning of rare-earth-ion-doped glasses prepared by sol-gel process

Masayuki Nogami, Tomokatsu Hayakawa, Tomotaka Ishikawa, Takehito Nagakura, Toshihiro Kasuga

Author Affiliations +

Proceedings Volume 3943, Sol-Gel Optics V; (2000) https://doi.org/10.1117/12.384329
Event: Symposium on Integrated Optoelectronics, 2000, San Jose, CA, United States

Abstract

Room temperature persistent spectral hole burning (PSHB) was observed in Sm²⁺ and Eu³⁺-doped Al₂O₃- SiO₂ glasses prepared by a sol-gel method. The glasses were obtained by heating the gels in hydrogen gas and the spectral hole was burned in the excitation spectrum of the ⁷F₀ yields ⁵D₀ transition of the Sm²⁺ and Eu³⁺ ions. The depth of the hole burned at 77 K decreased with increasing the cycling temperature. The decrease in the hole-depth is due to the thermal relaxation of the burnt-state of OH bonds surrounding the rare-earth ions. The depth of hole burned in the Sm²⁺-doped glass heated in 20 percent H₂-80 percent N₂ gas exhibited the PSHB at room temperature. We considered that the electron transfer between the rare-earth ions and the Al-related defect centers acts for hole burning.

Citation Download Citation

Masayuki Nogami, Tomokatsu Hayakawa, Tomotaka Ishikawa, Takehito Nagakura, and Toshihiro Kasuga "Room-temperature persistent spectral hole burning of rare-earth-ion-doped glasses prepared by sol-gel process", Proc. SPIE 3943, Sol-Gel Optics V, (2 May 2000); https://doi.org/10.1117/12.384329

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