< back to main site


Characterisation of terahertz beam profile and propagation.

Molloy, J F; Naftaly, M; Dudley, R A (2013) Characterisation of terahertz beam profile and propagation. IEEE J. Sel. Top. Quantum Electron., 19 (1). 8401508

Full text not available from this repository.


Two techniques for imaging a THz beam profile are described and employed in characterising the THz beam propagation in a time-domain spectrometer. Aperture scanning yields a 2D cross-sectional map of field amplitude at selected frequencies which is used to track beam evolution along its path. The Hartmann test produces a 2D topographical image of the wavefront, also at selected frequencies. The results are compared with theory, and the respective advantages of the two methods are discussed.

Item Type: Article
Keywords: terahertz, beam imaging
Subjects: Electromagnetics
Electromagnetics > Terahertz
Identification number/DOI: 10.1109/JSTQE.2012.2205668
Last Modified: 02 Feb 2018 13:14
URI: http://eprintspublications.npl.co.uk/id/eprint/5735

Actions (login required)

View Item View Item