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Optics Letters

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  • Editor: Anthony J Campillo
  • Vol. 32, Iss. 1 — Jan. 1, 2007
  • pp: 87–89

Ultraviolet upconversion fluorescence in rare-earth-ion-doped Y 2 O 3 induced by infrared diode laser excitation

G. Y. Chen, G. Somesfalean, Z. G. Zhang, Q. Sun, and F. P. Wang  »View Author Affiliations


Optics Letters, Vol. 32, Issue 1, pp. 87-89 (2007)
http://dx.doi.org/10.1364/OL.32.000087


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Abstract

Room-temperature ultraviolet emission of Tm 3 + ions at 298 ( I 6 1 H 6 3 ) , 364 ( D 2 1 H 6 3 ) , and 391 nm ( I 6 1 H 5 3 ) was obtained in Y 2 O 3 : Yb 3 + Tm 3 + by continuous-wave diode laser excitation of 980 nm . Power dependence analysis demonstrates that five- and six-photon upconversion processes populate the D 2 1 and I 6 1 states, respectively. We believe that the D 2 1 population originates from the cross relaxation G 4 1 + F 4 3 H 4 3 + D 2 1 of the Tm 3 + ions, while subsequent energy transfer from Yb 3 + to Tm 3 + excites the D 2 1 state to the upper I 6 1 state. High multiphoton-induced ultraviolet emission is also expected for other trivalent rare-earth ions similar to Tm 3 + .

© 2006 Optical Society of America

OCIS Codes
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3610) Lasers and laser optics : Lasers, ultraviolet
(190.4180) Nonlinear optics : Multiphoton processes
(190.7220) Nonlinear optics : Upconversion
(300.6410) Spectroscopy : Spectroscopy, multiphoton
(300.6540) Spectroscopy : Spectroscopy, ultraviolet

ToC Category:
Spectroscopy

History
Original Manuscript: July 13, 2006
Revised Manuscript: October 4, 2006
Manuscript Accepted: October 17, 2006
Published: December 13, 2006

Citation
G. Y. Chen, G. Somesfalean, Z. G. Zhang, Q. Sun, and F. P. Wang, "Ultraviolet upconversion fluorescence in rare-earth-ion-doped Y2O3 induced by infrared diode laser excitation," Opt. Lett. 32, 87-89 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-1-87


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