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.

  • Item type:Article
    ID code:17532
    Dates:
    Date
    Event
    1 January 1999
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Strathprints Administrator
    Date deposited:27 Apr 2010 09:05
    Last modified:08 Apr 2024 17:24
    URI:https://strathprints.strath.ac.uk/id/eprint/17532
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