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Plasmonics

, Volume 7, Issue 4, pp 641–645 | Cite as

Study of the Plasmon Talbot Effect of Metallic Nanolenses Induced by Linearly Polarized Illumination

  • Lingli Li
  • Yiwei Zhang
  • Yongqi Fu
  • Taisheng Wang
  • Zhenwu Lu
  • Qiang Sun
  • Weixing Yu
Article

Abstract

The plasmon Talbot effect of metallic nanolenses was studied theoretically and experimentally for the linearly polarized incident beam case. To demonstrate this self-imaging-based focusing property of the metallic nanolenses, a plasmonic nanolens with five periodic concentric through rings on Al film supported on quartz substrate was numerically studied firstly by the use of rigorous finite-difference and time-domain algorithm. To further demonstrate its working performance experimentally, it was fabricated by means of a focused ion beam direct milling technique. A near-field scanning optical microscope (NSOM) was then employed for the optical characterization of its focusing property. The experimental results indicate that the NSOM probing-based results are in agreement with the theoretical calculation results in general.

Keywords

Plasmonic nanolens The Talbot effect Periodic circular slits 

Notes

Acknowledgments

This work is supported by the National Natural Science Foundation of China with grant numbers 90923036, 60977041, 60877021, and 61077010 as well as the 100 Talents Program of the Chinese Academy of Sciences.

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Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  1. 1.Graduate University of Chinese Academy of SciencesBeijingChina
  2. 2.State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and PhysicsChinese Academy of SciencesChangchunChina
  3. 3.School of Physical ElectronicsUniversity of Electronic Science and Technology of ChinaChengduPeople’s Republic of China
  4. 4.Opto-electronic Technology Center, Changchun Institute of Optics, Fine Mechanics and PhysicsChinese Academy of SciencesChangchunChina

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