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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 8 — Apr. 9, 2012
  • pp: 8344–8355

Terahertz field enhancement to the MV/cm regime in a tapered parallel plate waveguide

K. Iwaszczuk, A. Andryieuski, A. Lavrinenko, X.-C. Zhang, and P. U. Jepsen  »View Author Affiliations


Optics Express, Vol. 20, Issue 8, pp. 8344-8355 (2012)
http://dx.doi.org/10.1364/OE.20.008344


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Abstract

We investigate field enhancement properties of a tapered parallel plate waveguide for ultrashort terahertz (THz) pulses. We use two independent methods, air biased coherent detection inside the waveguide and free-space electro-optic sampling, respectively, which enables a calibrated, quantitative measurement of the field strength at the output of the waveguide. Field enhancement factors greater than 20 are demonstrated and record-high field strengths of > 1.4 MV/cm are reached. We find an excellent agreement between the two independent methods of field measurement and a numerical 3D full-vectorial time-domain simulations.

© 2012 OSA

OCIS Codes
(230.7370) Optical devices : Waveguides
(320.7160) Ultrafast optics : Ultrafast technology
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Ultrafast Optics

History
Original Manuscript: February 7, 2012
Revised Manuscript: March 21, 2012
Manuscript Accepted: March 21, 2012
Published: March 26, 2012

Citation
K. Iwaszczuk, A. Andryieuski, A. Lavrinenko, X.-C. Zhang, and P. U. Jepsen, "Terahertz field enhancement to the MV/cm regime in a tapered parallel plate waveguide," Opt. Express 20, 8344-8355 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-8-8344


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