Applied Physics A

, Volume 100, Issue 2, pp 353–357 | Cite as

Field enhancement by semi-nanocapsule plasmonic antenna at the visible violet wavelength

  • Hong-Son Chu
  • Wei-Bin Ewe
  • Boris S. Luk’yanchuk
  • Er-Ping Li


We investigate, at the visible violet wavelength of 400 nm, the localized field-enhancement properties of an optical antenna consisting of two coupled metallic nanoparticles placed on the silica substrate. Compared to other shapes of optical antennas such as bowtie and coupled elliptical rods, the coupled semi-nanocapsules exhibit a stronger field-intensity enhancement in the gap and relatively weak field intensity at the outer-ends. Furthermore, the intensity enhancement of the semi-nanocapsules antenna can be further enhanced by choosing the suitable direction of illumination. These proposed structures can be used for the design and the applications of an optical antenna at the visible violet wavelength.


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  1. 1.
    P. Muhlschlegel, H.J. Eisler, O.J.F. Martin, B. Hecht, D.W. Pohl, Resonant optical antennas. Science 308, 1607–1609 (2005) ADSCrossRefGoogle Scholar
  2. 2.
    M. Schnell, A. Garcıa-Etxarri, A.J. Huber, K. Crozier, J. Aizpurua, R. Hillenbrand, Controlling the near-field oscillations of loaded plasmonic nanoantennas. Nat. Photonics 3, 287–291 (2009) ADSCrossRefGoogle Scholar
  3. 3.
    H.S. Chu, W.B. Ewe, W.S. Koh, E.P. Li, Remarkable influence of the number of nanowires on plasmonic behaviors of the coupled metallic nanowires chain. Appl. Phys. Lett. 92, 103103 (2008) ADSCrossRefGoogle Scholar
  4. 4.
    K.B. Crozier, A. Sundaramurthy, G.S. Kino, C.F. Quate, Optical antennas: Resonators for local field enhancement. J. Appl. Phys. 94, 4632 (2003) ADSCrossRefGoogle Scholar
  5. 5.
    E.J. Smythe, E. Cubukcu, F. Capasso, Optical properties of surface plasmon resonances of coupled metallic nanorods. Opt. Express 15, 7439–7447 (2007) ADSCrossRefGoogle Scholar
  6. 6.
    E. Cubukcu, E.A. Kort, K.B. Crozier, F. Capasso, Plasmonic laser antenna. Appl. Phys. Lett. 89, 093120 (2006) ADSCrossRefGoogle Scholar
  7. 7.
    T.H. Taminiau, F.D. Stefani, N.F. van Hulst, Enhanced directional excitation and emission of single emitters by a nano-optical Yagi-Uda antenna. Opt. Express 16, 10858–10866 (2008) ADSCrossRefGoogle Scholar
  8. 8.
    N. Yu, E. Cubukcu, L. Diehl, D. Bour, S. Corzine, J. Zhu, G. Höfler, K.B. Crozier, F. Capasso, Bowtie plasmonic quantum cascade laser antenna. Opt. Express 15, 13272–13281 (2007) ADSCrossRefGoogle Scholar
  9. 9.
    R.D. Grober, R.J. Schoelkopf, D.E. Prober, Optical antenna: Towards a unity efficiency near-field optical probe. Appl. Phys. Lett. 70, 1354 (1997) ADSCrossRefGoogle Scholar
  10. 10.
    J. Aizpurua, G.W. Bryant, L.J. Richter, F.J. Garcia de Abajo, B.K. Kelly, T. Mallouk, Optical properties of coupled metallic nanorods for field-enhanced spectroscopy. Phys. Rev. B 71, 235420 (2005) ADSCrossRefGoogle Scholar
  11. 11.
    H. Fisher, O.J. F Martin, Engineering the optical response of plasmonic nanoantennas. Opt. Express 16, 9144–9154 (2008) ADSCrossRefGoogle Scholar
  12. 12.
    R.M. Bakker, A. Boltasseva, Z. Liu, R.H. Pedersen, S. Gresillon, A.V. Kildishev, V.P. Drachev, V.M. Shalaev, Near-field excitation of nanoantenna resonance. Opt. Express 15, 13682–13688 (2007) ADSCrossRefGoogle Scholar
  13. 13.
    CST Studio Suite™,
  14. 14.
    S. Kirkpatrick, C.D. Gelatt, M.P. Vecchi, Optimization by simulated annealing. Science 220, 671–680 (1983) MathSciNetADSCrossRefGoogle Scholar
  15. 15.
    E.D. Palik, Handbook of Optical Constants of Solids (Academic Press, New York, 1985), pp. 350–357 Google Scholar
  16. 16.
    M.L. Tribelsky, B.S. Luk’yanchuk, Anomalous light scattering by small particles. Phys. Rev. Lett. 97, 263902 (2006) ADSCrossRefGoogle Scholar

Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Hong-Son Chu
    • 1
  • Wei-Bin Ewe
    • 1
  • Boris S. Luk’yanchuk
    • 2
  • Er-Ping Li
    • 1
  1. 1.Advanced Photonics and PlasmonicsA*STAR-Institute of High Performance ComputingSingaporeSingapore
  2. 2.A*STAR-Data Storage InstituteSingaporeSingapore

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