Abstract

Upconversion fluorescence emission of Er^(3+)-doped oxyfluorosilicate glass excited at 975 nm is experimentally investigated. The results reveal that the intense green and red emission, and weak blue emission centered at 525, 543, 655, and 410 nm, respectively. A two-photon upconversion process is assigned to the green and red emission while a three-photon process is responsible for blue upconversion. The possible upconversion mechanisms are discussed based on excited state absorption and energy transfer between excited Er^(3+) ions. The intense upconversion fluorescence of Er^(3+)-doped lead oxyfluorosilicate glass may be a potentially useful material for developing upconversion optical devices.

© 2005 Chinese Optics Letters

Optical spectroscopy, 1.5μm emission, and upconversion properties of Er³⁺-doped metaphosphate laser glasses

P. Babu, Hyo Jin Seo, Kyoung Hyuk Jang, R. Balakrishnaiah, C. K. Jayasankar, Ki-Soo Lim, and V. Lavín
J. Opt. Soc. Am. B 24(9) 2218-2228 (2007)

Optical transitions and frequency upconversion of Er³⁺ ions in Na₂O·Ca₃Al₂Ge₃O₁₂ glasses

H. Lin, E. Y. B. Pun, S. Q. Man, and X. R. Liu
J. Opt. Soc. Am. B 18(5) 602-609 (2001)

Study on optical properties and upconversion luminescence of Er³⁺/Yb³⁺ co-doped tellurite glass for highly sensitive temperature measuring

Jianfeng Tang, Maojun Sun, Yawen Huang, Jie Gou, Yu Zhang, Guannan Li, Yuan Li, Yuhong Man, and Jun Yang
Opt. Mater. Express 7(9) 3238-3250 (2017)

Infrared-to-visible upconversion of Er³⁺ ions in GeO₂–PbO–Nb₂O₅ glasses

Rolindes Balda, Angel J. Garcia-Adeva, Joaquin Fernández, and José M. Fdez-Navarro
J. Opt. Soc. Am. B 21(4) 744-752 (2004)

Room-temperature green upconversion fluorescence of an Er³⁺-doped laser liquid

C. Koeppen, G. Jiang, G. Zheng, and A. F. Garito
Opt. Lett. 21(9) 653-655 (1996)