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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 23 — Nov. 10, 2008
  • pp: 18576–18589

Nanoconcentration of terahertz radiation in plasmonic waveguides

Anastasia Rusina, Maxim Durach, Keith A. Nelson, and Mark I. Stockman  »View Author Affiliations


Optics Express, Vol. 16, Issue 23, pp. 18576-18589 (2008)
http://dx.doi.org/10.1364/OE.16.018576


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Abstract

We establish the principal limits for the nanoconcentration of the THz radiation in metal/dielectric waveguides and determine their optimum shapes required for this nanoconcentration. We predict that the adiabatic compression of THz radiation from the initial spot size of R0 ~λ0 to the final size of R=100-250 nm can be achieved, while the THz radiation intensity is increased by a factor of ×10 to ×250. This THz energy nanoconcentration will not only improve the spatial resolution and increase the signal/noise ratio for the THz imaging and spectroscopy, but in combination with the recently developed sources of powerful THz pulses will allow the observation of nonlinear THz effects and a variety of nonlinear spectroscopies (such as two-dimensional spectroscopy), which are highly informative. This will find a wide spectrum of applications in science, engineering, biomedical research, environmental monitoring, and defense.

© 2008 Optical Society of America

OCIS Codes
(230.7370) Optical devices : Waveguides
(240.6690) Optics at surfaces : Surface waves
(250.5403) Optoelectronics : Plasmonics
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Optics at Surfaces

History
Original Manuscript: September 3, 2008
Revised Manuscript: October 23, 2008
Manuscript Accepted: October 24, 2008
Published: October 27, 2008

Virtual Issues
Vol. 4, Iss. 1 Virtual Journal for Biomedical Optics

Citation
Anastasia Rusina, Maxim Durach, Keith A. Nelson, and Mark I. Stockman, "Nanoconcentration of terahertz radiation in plasmonic waveguides," Opt. Express 16, 18576-18589 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-23-18576


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