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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 7, Iss. 6 — Jun. 1, 2009
  • pp: 524–526

Multi-photon upconversion luminescence of Er3+-doped Y2O3 nanocrystals

Yunxiang Wang, Yunfeng Bai, and Yinglin Song  »View Author Affiliations


Chinese Optics Letters, Vol. 7, Issue 6, pp. 524-526 (2009)


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Abstract

Visible upconversion emission intensities are investigated in Er3+-doped Y2O3 nanocrystals. We also find that the upconversion intensity varies nonlinearly with the excitation power with a threshold of 110 mW, which indicates that the green and red emissions would be photon avalanche upconversion when the excitation power exceeds the threshold.

© 2009 Chinese Optics Letters

OCIS Codes
(160.5690) Materials : Rare-earth-doped materials
(190.7220) Nonlinear optics : Upconversion
(250.5230) Optoelectronics : Photoluminescence
(160.4236) Materials : Nanomaterials

Citation
Yunxiang Wang, Yunfeng Bai, and Yinglin Song, "Multi-photon upconversion luminescence of Er3+-doped Y2O3 nanocrystals," Chin. Opt. Lett. 7, 524-526 (2009)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-7-6-524

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