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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 12 — Jun. 9, 2008
  • pp: 8433–8439

Generation of broadband radially polarized terahertz radiation directly on a cylindrical metal wire

Wenqi Zhu, Amit Agrawal, Hua Cao, and Ajay Nahata  »View Author Affiliations


Optics Express, Vol. 16, Issue 12, pp. 8433-8439 (2008)
http://dx.doi.org/10.1364/OE.16.008433


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Abstract

We demonstrate the ability to directly generate broadband THz surface plasmons via optical rectification on a cylindrical metal wire. This is accomplished by milling a single circumferential groove into the wire and overcoating it with a poled polymer that exhibits a bulk second order susceptibility. An attractive feature of this approach is the potential to generate THz pulses that are limited in duration only by the duration of the optical pump pulse. While a photoconductive detector is used in the present demonstration, we discuss further refinements to the system that should allow for significant enhancement of the nonlinear optical conversion efficiency and detection bandwidth.

© 2008 Optical Society of America

OCIS Codes
(130.2790) Integrated optics : Guided waves
(240.6680) Optics at surfaces : Surface plasmons
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

ToC Category:
Ultrafast Optics

History
Original Manuscript: April 15, 2008
Revised Manuscript: May 16, 2008
Manuscript Accepted: May 17, 2008
Published: May 23, 2008

Citation
Wenqi Zhu, Amit Agrawal, Hua Cao, and Ajay Nahata, "Generation of broadband radially polarized terahertz radiation directly on a cylindrical metal wire," Opt. Express 16, 8433-8439 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-12-8433


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References

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