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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 6 — Mar. 15, 2010
  • pp: 6340–6346

Anti-bunching and luminescence blinking suppression from plasmon-interacted single CdSe/ZnS quantum dot

Xiao-Wei Wu, Ming Gong, Chun-Hua Dong, Jin-Ming Cui, Yong Yang, Fang-Wen Sun, Guang-Can Guo, and Zheng-Fu Han  »View Author Affiliations

Optics Express, Vol. 18, Issue 6, pp. 6340-6346 (2010)

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CdSe/ZnS colloidal quantum dots generally exist as blinking phenomena during the luminescence process that remarkably influences its applications. In this work, we used the surface plasmonic effect to effectively modulate single quantum dots. Obvious contrasts have been observed by comparing single quantum dots on silica and gold films. The surface plasmon is shown to obviously suppress the blinking of single quantum dots. With further demonstrated second- order correlation measurements, an anti-bunching effect was observed. The anti-bunching dip gives the smallest value of g(2)(0) = 0.15, and the lifetime of the exciton has been reduced. This method presents the application’s potential towards tunable high-emitting-speed single photon sources at room temperature.

© 2010 Optical Society of America

OCIS Codes
(030.5260) Coherence and statistical optics : Photon counting
(240.6680) Optics at surfaces : Surface plasmons
(270.5290) Quantum optics : Photon statistics

ToC Category:
Quantum Optics

Original Manuscript: January 14, 2010
Revised Manuscript: February 18, 2010
Manuscript Accepted: March 5, 2010
Published: March 12, 2010

Xiao-Wei Wu, Ming Gong, Chun-Hua Dong, Jin-Ming Cui, Yong Yang, Fang-Wen Sun, Zheng-Fu Han, and Guang-Can Guo, "Anti-bunching and luminescence blinking suppression from plasmon-interacted single CdSe/ZnS quantum dot," Opt. Express 18, 6340-6346 (2010)

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