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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 3 — Feb. 5, 2007
  • pp: 1384–1389

Multiphoton-excited upconversion luminescence of Nd: YVO4

Xinshun Wang, Juan Song, Haiyi Sun, Zhizhan Xu, and Jianrong Qiu  »View Author Affiliations

Optics Express, Vol. 15, Issue 3, pp. 1384-1389 (2007)

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Fluorescence spectra of Nd:YVO4 under excitation of a continuous wave (CW) diode laser and a femtosecond laser at 800nm were investigated. It was found that Nd:YVO4 shows different upconversion and downconversion luminescencent behaviors when excited by the diode laser and the femtosecond laser. The dependence of the upconversion luminescence intensity on the pump power of the femtosecond laser was discussed. The populations of the upper energy levels for upconversion and downconversion luminescence were calculated based on the Bloch equations. The calculations agree well with the experimental results.

© 2007 Optical Society of America

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(190.2620) Nonlinear optics : Harmonic generation and mixing
(300.2530) Spectroscopy : Fluorescence, laser-induced
(320.2250) Ultrafast optics : Femtosecond phenomena

ToC Category:
Ultrafast Optics

Original Manuscript: October 12, 2006
Revised Manuscript: December 14, 2006
Manuscript Accepted: December 21, 2006
Published: February 5, 2007

Xinshun Wang, Juan Song, Haiyi Sun, Zhizhan Xu, and Jianrong Qiu, "Multiphoton-excited upconversion luminescence of Nd:YVO4," Opt. Express 15, 1384-1389 (2007)

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