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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 12 — Jun. 15, 2013
  • pp: 2156–2158

In-plane focusing of terahertz surface waves on a gradient index metamaterial film

Martin F. Volk, Benjamin Reinhard, Jens Neu, René Beigang, and Marco Rahm  »View Author Affiliations

Optics Letters, Vol. 38, Issue 12, pp. 2156-2158 (2013)

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We designed and implemented a gradient index metasurface for in-plane focusing of confined terahertz (THz) surface waves. We measured the spatial propagation of the surface waves by two-dimensional mapping of the complex electric field using a THz near-field spectroscope. The surface waves were focused to a diameter of 500 μm after a focal length of approximately 2 mm. In the focus, we measured a field amplitude enhancement of a factor of 3.

© 2013 Optical Society of America

OCIS Codes
(240.6690) Optics at surfaces : Surface waves
(160.3918) Materials : Metamaterials

ToC Category:

Original Manuscript: March 25, 2013
Manuscript Accepted: May 21, 2013
Published: June 14, 2013

Martin F. Volk, Benjamin Reinhard, Jens Neu, René Beigang, and Marco Rahm, "In-plane focusing of terahertz surface waves on a gradient index metamaterial film," Opt. Lett. 38, 2156-2158 (2013)

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  1. T. Driscoll, G. O. Andreev, D. N. Basov, S. Palit, S. Y. Cho, N. M. Jokerst, and D. R. Smith, Appl. Phys. Lett. 91, 062511 (2007). [CrossRef]
  2. J. F. O’Hara, R. Singh, I. Brener, E. Smirnova, J. Han, A. J. Taylor, and W. Zhang, Opt. Express 16, 1786 (2008). [CrossRef]
  3. H. Tao, A. C. Strikwerda, M. Liu, J. P. Mondia, E. Ekmekci, K. Fan, D. L. Kaplan, W. J. Padilla, X. Zhang, R. D. Averitt, and F. G. Omenetto, Appl. Phys. Lett. 97, 261909 (2010). [CrossRef]
  4. B. Reinhard, K. M. Schmitt, V. Wollrab, J. Neu, R. Beigang, and M. Rahm, Appl. Phys. Lett. 100, 221101 (2012). [CrossRef]
  5. C. Rau, G. Torosyan, R. Beigang, and K. Nerkararyan, Appl. Phys. Lett. 86, 211119 (2005). [CrossRef]
  6. T. H. Isaac, W. L. Barnes, and E. Hendry, Appl. Phys. Lett. 93, 241115 (2008). [CrossRef]
  7. M. Theuer, R. Beigang, and D. Grischkowsky, Appl. Phys. Lett. 97, 071106 (2010). [CrossRef]
  8. W. L. Barnes, A. Dereux, and T. W. Ebbesen, Nature 424, 824 (2003). [CrossRef]
  9. M. Navarro-Cía, M. Beruete, S. Agrafiotis, F. Falcone, M. Sorolla, and S. A. Maier, Opt. Express 17, 18184 (2009). [CrossRef]
  10. B. Reinhard, O. Paul, R. Beigang, and M. Rahm, Opt. Lett. 35, 1320 (2010). [CrossRef]
  11. Y. Minowa, M. Nagai, H. Tao, K. Fan, A. Strikwerda, X. Zhang, R. Averitt, and K. Tanaka, IEEE Trans. Terahertz Sci. Technol. 1, 441 (2011). [CrossRef]
  12. E. Hecht, Optics, 4th ed. (Addison Wesley, 2002).
  13. O. Paul, C. Imhof, B. Reinhard, R. Zengerle, and R. Beigang, Opt. Express 16, 6736 (2008). [CrossRef]
  14. N. C. J. van der Valk and P. C. M. Planken, Appl. Phys. Lett. 81, 1558 (2002). [CrossRef]
  15. J. Neu, B. Krolla, O. Paul, B. Reinhard, R. Beigang, and M. Rahm, Opt. Express 18, 27748 (2010). [CrossRef]

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