Superluminal terahertz pulses

Wynne, K. and Jaroszynski, D.A. (1999) Superluminal terahertz pulses. Optics Letters, 24 (1). pp. 25-27. ISSN 0146-9592 (http://dx.doi.org/10.1364/OL.24.000025)

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Abstract

In femtosecond terahertz-pulse (T-ray) imaging of metal structures with dimensions of the order of the wavelength, it is observed that the T rays propagate faster than the vacuum speed of light. In the case of apertures this can be understood as a waveguide effect in which superluminal velocities are expected close to the cutoff frequency. However, the effect is also observed close to knife edges and in propagation past thin metal wires.

ORCID iDs

Wynne, K. ORCID logoORCID: https://orcid.org/0000-0002-5305-5940 and Jaroszynski, D.A. ORCID logoORCID: https://orcid.org/0000-0002-3006-5492;
  • Item type:Article
    ID code:17532
    Dates:
    Date
    Event
    1 January 1999
    Published
    Keywords:femtosecond terahertz-pulse, T-ray, metal structures, wavelength, speed of light, superluminal velocities, Physics, Atomic and Molecular Physics, and Optics
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Strathprints Administrator
    Date deposited:27 Apr 2010 09:05
    Last modified:01 Nov 2023 09:31
    URI:https://strathprints.strath.ac.uk/id/eprint/17532
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