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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 21 — Nov. 1, 2009
  • pp: 3349–3351

Frequency-upconverted whispering-gallery-mode lasing in ZnO hexagonal nanodisks

Chunfeng Zhang, Fan Zhang, Xiao Wei Sun, Yi Yang, Jian Wang, and Jian Xu  »View Author Affiliations

Optics Letters, Vol. 34, Issue 21, pp. 3349-3351 (2009)

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Low threshold, frequency-upconverted lasing in the two-photon absorption regime was observed in hexa gonal ZnO nanodisks. Upon near-IR excitation, the ZnO nanodisk resonators produced UV laser emission with a remarkably low threshold ( 1 mJ cm 2 ) as well as a resolved lasing linewidth of 0.1 nm . Modal analysis and far-field photoluminescence imaging of the nanolasers have suggested the dominance of whispering-gallery modes in the two-photon pumped microcavity lasing process.

© 2009 Optical Society of America

OCIS Codes
(140.3410) Lasers and laser optics : Laser resonators
(160.6000) Materials : Semiconductor materials
(140.3613) Lasers and laser optics : Lasers, upconversion
(160.4236) Materials : Nanomaterials

ToC Category:

Original Manuscript: June 26, 2009
Revised Manuscript: September 13, 2009
Manuscript Accepted: September 15, 2009
Published: October 27, 2009

Chunfeng Zhang, Fan Zhang, Xiao Wei Sun, Yi Yang, Jian Wang, and Jian Xu, "Frequency-upconverted whispering-gallery-mode lasing in ZnO hexagonal nanodisks," Opt. Lett. 34, 3349-3351 (2009)

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