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Femtosecond laser excited up-conversion luminescence from tungsten (molybdenum) ions doped silicate glasses

GUOPING DONG1,* , XIUDI XIAO1, BIN QIAN1, JUAN SONG1, XIAOFENG LIU1, QIANG ZHANG1, GENG LIN1, DANPING CHEN1, JIANRONG QIU2

Affiliation

  1. Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Qinghe Road 390, Jiading District, Shanghai 201800, PR China; and Graduate School of the Chinese Academy of Sciences, Bei
  2. State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, Zhejiang 310027, PR China

Abstract

Blue emission at 468 nm has been observed in tungsten ions doped Na2O-CaO-SiO2 glasses excited by 800nm femtosecond laser. The similar emission at 500nm was also observed in molybdenum ions doped silicate glasses. The intensity of emission depends on the power of femtosecond laser, which indicates that the upconversion emission is a two-photon-excited process. This emission is mainly due to the charge transfer between the 2p orbital of O2- ions and the nd0 energy level of W6+ (Mo6+) ions in WO4 2- (MoO42-) tetrahedron..

Keywords

Femtosecond laser, Silicate glass, W(Mo) ion doping, Luminescence.

Submitted at: Feb. 19, 2009
Accepted at: March 24, 2009

Citation

GUOPING DONG, XIUDI XIAO, BIN QIAN, JUAN SONG, XIAOFENG LIU, QIANG ZHANG, GENG LIN, DANPING CHEN, JIANRONG QIU, Femtosecond laser excited up-conversion luminescence from tungsten (molybdenum) ions doped silicate glasses, Journal of Optoelectronics and Advanced Materials Vol. 11, Iss. 3, pp. 270-273 (2009)