OSA's Digital Library

Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 27 — Dec. 19, 2011
  • pp: 26463–26469

Broadband unidirectional generation of surface plasmon polaritons with dielectric–film–coated asymmetric single–slit

Jianjun Chen, Zhi Li, Ming Lei, Song Yue, Jinghua Xiao, and Qihuang Gong  »View Author Affiliations

Optics Express, Vol. 19, Issue 27, pp. 26463-26469 (2011)

View Full Text Article

Enhanced HTML    Acrobat PDF (2017 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



A dielectric–film–coated asymmetric single nanoslit is proposed to realize broadband unidirectional generation of surface plasmon polaritons (SPPs). Due to the tight field confinements by the dielectric film and the deep groove in the asymmetric single slit, the transmittance of the SPPs in the groove to the left side considerably decreases. This greatly suppresses the left–propagating SPP generation efficiency for a broad bandwidth. Meanwhile, the right–propagating SPP generation efficiency has a flat spectra range because of the low transmittance, too. So the unidirectional SPP generation with bandwidth of >100 nm around λ = 750 nm is experimentally achieved for the device lateral dimension of only 865 nm.

© 2011 OSA

OCIS Codes
(130.0130) Integrated optics : Integrated optics
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Optics at Surfaces

Original Manuscript: October 19, 2011
Revised Manuscript: November 23, 2011
Manuscript Accepted: November 28, 2011
Published: December 12, 2011

Jianjun Chen, Zhi Li, Ming Lei, Song Yue, Jinghua Xiao, and Qihuang Gong, "Broadband unidirectional generation of surface plasmon polaritons with dielectric–film–coated asymmetric single–slit," Opt. Express 19, 26463-26469 (2011)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. W. L. Barnes, A. Dereux, and T. W. Ebbesen, “Surface plasmon subwavelength optics,” Nature 424(6950), 824–830 (2003). [CrossRef] [PubMed]
  2. D. K. Gramotnev and S. I. Bozhevolnyi, “Plasmonics beyond the diffraction limit,” Nat. Photonics 4(2), 83–91 (2010). [CrossRef]
  3. T. W. Ebbesen, C. Genet, and S. I. Bozhevolnyi, “Surface-plasmon circuitry,” Phys. Today 61(5), 44–50 (2008). [CrossRef]
  4. J. J. Chen, Z. Li, S. Yue, and Q. H. Gong, “Highly efficient all-optical control of surface-plasmon-polariton generation based on a compact asymmetric single slit,” Nano Lett. 11(7), 2933–2937 (2011). [CrossRef] [PubMed]
  5. F. López-Tejeira, S. G. Rodrigo, L. Martín-Moreno, F. J. Garcia-Vidal, E. Devaux, T. W. Ebbesen, J. R. Krenn, I. P. Radko, S. I. Bozhevolnyi, M. U. Gonzalez, J. C. Weeber, and A. Dereux, “Efficient unidirectional nanoslit couplers for surface plasmons,” Nat. Phys. 3(5), 324–328 (2007). [CrossRef]
  6. I. P. Radko, S. I. Bozhevolnyi, G. Brucoli, L. Martín-Moreno, F. J. García-Vidal, and A. Boltasseva, “Efficient unidirectional ridge excitation of surface plasmons,” Opt. Express 17(9), 7228–7232 (2009). [CrossRef] [PubMed]
  7. T. Xu, Y. H. Zhao, D. C. Gan, C. T. Wang, C. L. Du, and X. G. Luo, “Directional excitation of surface plasmons with subwavelength slits,” Appl. Phys. Lett. 92(10), 101501 (2008). [CrossRef]
  8. X. W. Li, Q. F. Tan, B. F. Bai, and G. F. Jin, “Experimental demonstration of tunable directional excitation of surface plasmon polaritons with a subwavelength metallic double slit,” Appl. Phys. Lett. 98(25), 251109 (2011). [CrossRef]
  9. G. Lerosey, D. F. P. Pile, P. Matheu, G. Bartal, and X. Zhang, “Controlling the phase and amplitude of plasmon sources at a subwavelength scale,” Nano Lett. 9(1), 327–331 (2009). [CrossRef] [PubMed]
  10. B. Wang, L. Aigouy, E. Bourhis, J. Gierak, J. P. Hugonin, and P. Lalanne, “Efficient generation of surface plasmon by single–nanoslit illumination under highly oblique incidence,” Appl. Phys. Lett. 94(1), 011114 (2009). [CrossRef]
  11. H. Kim and B. Lee, “Unidirectional surface plasmon polariton excitation on single slit with oblique backside illumination,” Plasmonics 4(2), 153–159 (2009). [CrossRef]
  12. J. J. Chen, Z. Li, S. Yue, and Q. H. Gong, “Efficient unidirectional generation of surface plasmon polaritons with an asymmetric single-nanoslit,” Appl. Phys. Lett. 97(4), 041113 (2010). [CrossRef]
  13. E. Verhagen, L. K. Kuipers, and A. Polman, “Plasmonic nanofocusing in a dielectric wedge,” Nano Lett. 10(9), 3665–3669 (2010). [CrossRef] [PubMed]
  14. H. A. Haus, Waves and Fields in Optoelectronics (Prentice–Hall, 1984), p. 68.
  15. P. B. Johnson and R. W. Christy, “Optical constants of the noble metals,” Phys. Rev. B 6(12), 4370–4379 (1972). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


Fig. 1 Fig. 2 Fig. 3
Fig. 4

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited