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Proceedings Paper

Nanoconcentration of terahertz radiation in plasmonic waveguides
Author(s): Anastasia Rusina; Maxim Durach; Keith A. Nelson; Mark I. Stockman
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Paper Abstract

Here, 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 with the THz radiation intensity 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 carrying out 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.

Paper Details

Date Published: 10 September 2010
PDF: 13 pages
Proc. SPIE 7757, Plasmonics: Metallic Nanostructures and Their Optical Properties VIII, 77571H (10 September 2010); doi: 10.1117/12.859910
Show Author Affiliations
Anastasia Rusina, Georgia State Univ. (United States)
Maxim Durach, Georgia State Univ. (United States)
Keith A. Nelson, Massachusetts Institute of Technology (United States)
Mark I. Stockman, Georgia State Univ. (United States)
Max-Planck-Institut für Quantenoptik (Germany)

Published in SPIE Proceedings Vol. 7757:
Plasmonics: Metallic Nanostructures and Their Optical Properties VIII
Mark I. Stockman, Editor(s)

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