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Optics Letters

Optics Letters

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  • Vol. 36, Iss. 7 — Apr. 1, 2011
  • pp: 1056–1058

Measurement of infrared level lifetime by upconversion luminescence

Ai-Hua Li, Zhi-Ren Zheng, Qiang Lü, Zhao-Peng Xu, Chao Xu, Yu-Heng Xu, and Wei-Long Liu  »View Author Affiliations


Optics Letters, Vol. 36, Issue 7, pp. 1056-1058 (2011)
http://dx.doi.org/10.1364/OL.36.001056


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Abstract

Based on repetition frequency-dependent excited state absorption (ESA) upconversion (UC) luminescence, a method to measure the lifetime of an IR intermediate level is proposed so long as ESA UC luminescence can occur in the rare earth ions. The feasibility of this idea is demonstrated via a theoretical simulation. A Er 3 + : LiNbO 3 crystal ESA UC luminescence under femtosecond laser excitation is used to illustrate this measure ment method, and the obtained 1.5 μm lifetime of 2.31 ms is shorter than previous reported values. This method can obviate the influence of radiation trapping effect on lifetime measurement, which is crucial in the traditional pulse sampling technique.

© 2011 Optical Society of America

OCIS Codes
(160.5690) Materials : Rare-earth-doped materials
(190.7220) Nonlinear optics : Upconversion
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence

ToC Category:
Materials

History
Original Manuscript: December 1, 2010
Revised Manuscript: February 12, 2011
Manuscript Accepted: February 14, 2011
Published: March 17, 2011

Citation
Ai-Hua Li, Zhi-Ren Zheng, Qiang Lü, Zhao-Peng Xu, Chao Xu, Yu-Heng Xu, and Wei-Long Liu, "Measurement of infrared level lifetime by upconversion luminescence," Opt. Lett. 36, 1056-1058 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-7-1056

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