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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 19 — Sep. 18, 2006
  • pp: 8772–8778

Optics InfoBase > Optics Express > Volume 14 > Issue 19 > Page 8772

Frequency-dependent radiation patterns emitted by THz plasmons on finite length cylindrical metal wires

Jason A. Deibel, Nicholas Berndsen, Kanglin Wang, Daniel M. Mittleman, Nick C. van der Valk, and Paul C. M. Planken  »View Author Affiliations


Optics Express, Vol. 14, Issue 19, pp. 8772-8778 (2006)
http://dx.doi.org/10.1364/OE.14.008772


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Abstract

We report on the emission patterns from THz plasmons propagating towards the end of cylindrical metal waveguides. Such waveguides exhibit low loss and dispersion, but little is known about the dynamics of the terahertz radiation at the end of the waveguide, specifically in the near- and intermediate-field. Our experimental results and numerical simulations show that the near- and intermediate-field terahertz spectra, measured at the end of the waveguide, vary with the position relative to the waveguide. This is explained by the frequency-dependent diffraction occurring at the end of the cylindrical waveguide. Our results show that near-field changes in the frequency content of THz pulses for increasing wire-detector distances must be taken into account when studying surface waves on cylindrical waveguides.

© 2006 Optical Society of America

OCIS Codes
(230.7370) Optical devices : Waveguides
(240.6680) Optics at surfaces : Surface plasmons
(260.3090) Physical optics : Infrared, far

ToC Category:
Optics at Surfaces

History
Original Manuscript: August 16, 2006
Revised Manuscript: September 5, 2006
Manuscript Accepted: September 5, 2006
Published: September 18, 2006

Citation
Jason A. Deibel, Nicholas Berndsen, Kanglin Wang, Daniel M. Mittleman, Nick C. van der Valk, and Paul C. M. Planken, "Frequency-dependent radiation patterns emitted by THz plasmons on finite length cylindrical metal wires," Opt. Express 14, 8772-8778 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-19-8772


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References

  1. K. Wang, A. Barkan, and D. M. Mittleman, "Propagation effects in apertureless near-field optical antennas," Appl. Phys. Lett. 84, 305-307 (2004). [CrossRef]
  2. K. Wang and D. M. Mittleman, "Metal wires for THz wave guiding," Nature (London) 432, 376-379 (2004). [CrossRef]
  3. T. Jeon, J. Zhang, and D. Grischkowsky, "THz Sommerfeld wave propagation on a singel metal wire," Appl. Phys. Lett. 86, 071106/1-3 (2005). [CrossRef]
  4. M. Wächter, M. Nagel, and H. Kurz, "Frequency-dependent characterization of THz Sommerfeld wave propagation on single wires," Opt. Express 13, 10815-10822 (2005). [CrossRef] [PubMed]
  5. K. Wang and D. M. Mittleman, "Dispersion of surface plasmon polaritons on metal wires in the terahertz frequency range," Phys. Rev. Lett. 96, 157401/1-4 (2006). [CrossRef]
  6. N. C. J. van der Valk and P. C. M. Planken, "Effect of a dielectric coating on terahertz surface plasmon polaritons on metal wires," Appl. Phys. Lett. 87, 071106/1-3 (2005). [CrossRef]
  7. N. C. J. van der Valk, "Towards teraherz microscopy," thesis, http://www.library.tudelft.nl/dissertations/dd_list_paged/dd_metadata/index.htm?docname=363824.
  8. M. Walther, M. R. Freeman, and F. A. Hegmann, "Metal wire terahertz time-domain spectroscopy," Appl. Phys. Lett. 87, 261107/1-3 (2005). [CrossRef]
  9. M. Walther, G. S. Chambers, Z. Liu, M. R. Freeman, and F. A. Hegmann, "Emission and detection of terahertz pulses from a metal-tip antenna," J. Opt. Soc. Am. B 22, 2357-2365 (2005). [CrossRef]
  10. M. I. Stockman, "Nanofocusing of optical energy in tapered plasmonic waveguides," Phys. Rev. Lett. 93, 137404/1-4 (2004). [CrossRef]
  11. F. Hao and P. Nordlander, "Plasmonic coupling between a metallic nanosphere and a thin metallic wire," Appl. Phys. Lett. 89,103101 (2006). [CrossRef]
  12. G. Zhao, R. N. Schouten, N. C. J. van der Valk, W. Th. Wenckebach, and P. C. M. Planken, "Design and performance of a THz emission and detection setup based on a semi-insulating GaAs emitter," Rev. Sci. Instrum. 73, 1715-1719 (2002). [CrossRef]
  13. J. A. Deibel, K. Wang, M. D. Escarra, and D. M. Mittleman, "Enhanced coupling of terahertz radiation to cylindrical wire waveguides," Opt. Express 14,279-290 (2006). [CrossRef] [PubMed]
  14. K. Wang, D. M. Mittleman, N. C. J. van der Valk, and P. C. M. Planken, "Antenna effects in terahertz apertureless near-field optical microscopy," Appl. Phys. Lett. 85, 2715 (2004). [CrossRef]
  15. G. Goubau, "Surface waves and their application to transmission lines," J. Appl. Phys. 21, 1119-1128 (1950). [CrossRef]
  16. J. Jin, The Finite Element Method in Electromagnetics, (John Wiley & Sons, Inc., New York 2002).

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