Nonlinear and near-field propagation effects of single-cycle terahertz pulses

Carey, J.J. and Jamison, S.P. and Jones, D. and Jaroszynski, D.A. and Wynne, K. IEEE, IEEE , ed. (2002) Nonlinear and near-field propagation effects of single-cycle terahertz pulses. In: Lasers and Electro-Optics Society 2000 Annual Meeting. LEOS 2000. 13th Annual Meeting. IEEE, 2000-11-13 - 2000-11-16. (http://dx.doi.org/10.1109/LEOS.2000.890735)

Abstract

A study of frustrated total internal reflection (FTIR) will be described in which evanescent electromagnetic waves travel in the air gap between two prisms. New data will be presented demonstrating superluminal propagation entirely measured and analyzed in the time domain using single-cycle terahertz pulses. It is found that the pulses are advanced more than ever seen before, more than a pulse width. Theoretical analysis shows that in FTIR part of the incoming pulse travels backwards in time apparently violating the principle of causality. The laser system used produces 150-fs pulses at a 250-kHz repetition frequency resulting in 600-mW average power at 800 nm

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• Item metadata

  Item type:	Conference or Workshop Item(Paper)
  ID code:	18317
  Dates:	Date Event 6 August 2002 Published
  Subjects:	Science > Physics
  Department:	Faculty of Science > Physics
  Depositing user:	Strathprints Administrator
  Date deposited:	26 Mar 2010 20:19
  Last modified:	09 Apr 2024 05:22
  URI:	https://strathprints.strath.ac.uk/id/eprint/18317