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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 13 — Jun. 21, 2010
  • pp: 13647–13654

Random lasing action of randomly assembled ZnO Nanowires with MgO coating

H.Y. Yang, S.F. Yu, G. P. Li, and T. Wu  »View Author Affiliations


Optics Express, Vol. 18, Issue 13, pp. 13647-13654 (2010)
http://dx.doi.org/10.1364/OE.18.013647


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Abstract

Lasing characteristics of randomly assembled ZnO nanowires (NWs) coated with different thickness of MgO layers are investigated. It is found that the MgO coated randomly assembled ZnO NWs demonstrate random lasing action and the formation of coherent optical feedback is dependent on the thickness of MgO coating. Pump threshold of the MgO coated randomly assembled ZnO NWs increases with the increase of MgO thickness. Nevertheless, the appropriate use of MgO coating can reduce the pump threshold by ~30% and the corresponding characteristic temperature can be improved by 28 K.

© 2010 OSA

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.5960) Lasers and laser optics : Semiconductor lasers

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: March 18, 2010
Revised Manuscript: April 19, 2010
Manuscript Accepted: May 3, 2010
Published: June 10, 2010

Citation
H. Y. Yang, S. F. Yu, G. P. Li, and T. Wu, "Random lasing action of randomly assembled ZnO Nanowires with MgO coating," Opt. Express 18, 13647-13654 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-13-13647


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