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Applied Optics

Applied Optics


  • Vol. 37, Iss. 33 — Nov. 20, 1998
  • pp: 7805–7808

Diode-pumped violet energy upconversion in BaF2:Er3+

Darayas N. Patel, Rami B. Reddy, and Shelia K. Nash-Stevenson  »View Author Affiliations

Applied Optics, Vol. 37, Issue 33, pp. 7805-7808 (1998)

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Under 805-nm diode-laser excitation we detected intense upconversion signals at 410, 380, and 275 nm in BaF2:Er3+. Energy upconversion schemes and efficiencies are discussed in detail. Intensity parameters of Er3+ in BaF2 were derived as Ω2 = 1.048 ± 0.117 × 10-20 cm2, Ω4 = 1.478 ± 0.180 × 10-20 cm2, and Ω6 = 1.009 ± 0.127 × 10-20 cm2.

© 1998 Optical Society of America

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(160.3220) Materials : Ionic crystals
(160.3380) Materials : Laser materials
(190.7220) Nonlinear optics : Upconversion
(300.2530) Spectroscopy : Fluorescence, laser-induced
(300.6410) Spectroscopy : Spectroscopy, multiphoton

Original Manuscript: May 4, 1998
Revised Manuscript: August 14, 1998
Published: November 20, 1998

Darayas N. Patel, Rami B. Reddy, and Shelia K. Nash-Stevenson, "Diode-pumped violet energy upconversion in BaF2:Er3+," Appl. Opt. 37, 7805-7808 (1998)

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Fig. 1 Fig. 2 Fig. 3

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