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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 9, Iss. 5 — Apr. 29, 2014

Terahertz wave generation by nanoconfinement of light

Hamid Reza Zangeneh and Marzieh Asadnia Fard Jahromi  »View Author Affiliations


Applied Optics, Vol. 53, Issue 9, pp. 1826-1831 (2014)
http://dx.doi.org/10.1364/AO.53.001826


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Abstract

This paper presents a novel nanosource of continuous terahertz (THz) wave radiation based on difference frequency generation (DFG). Both the optical and THz waves are confined in a nanoscale plasmonic waveguide. The results of theoretical investigations indicate that the appropriate geometry of the plasmonic waveguide has a relatively long optical and THz propagation distance (on the order of several tens of wavelengths). Phase matching is obtained using the dispersive properties of the waveguide for generating 0.8 THz at the central optical wavelength of 1.52 μm. Our numerical calculation shows that the conversion efficiency in this waveguide structure can be achieved up to 5 times as large as the micron scale dielectric waveguides and almost 10 times as large as the metallic micron scale waveguides.

© 2014 Optical Society of America

OCIS Codes
(190.4360) Nonlinear optics : Nonlinear optics, devices
(240.0240) Optics at surfaces : Optics at surfaces
(240.6680) Optics at surfaces : Surface plasmons
(350.4238) Other areas of optics : Nanophotonics and photonic crystals

ToC Category:
Optics at Surfaces

History
Original Manuscript: November 28, 2013
Revised Manuscript: February 9, 2014
Manuscript Accepted: February 9, 2014
Published: March 19, 2014

Virtual Issues
Vol. 9, Iss. 5 Virtual Journal for Biomedical Optics

Citation
Hamid Reza Zangeneh and Marzieh Asadnia Fard Jahromi, "Terahertz wave generation by nanoconfinement of light," Appl. Opt. 53, 1826-1831 (2014)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-53-9-1826


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