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Proceedings Paper

THz time domain sensing and imaging
Author(s): R. Alan Cheville; Matthew T. Reiten; John O'Hara; Daniel R. Grischkowsky
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Paper Abstract

Over the past decade the experimental technique of THz time domain spectroscopy (THz-TDS) has proved to be a versatile method for investigating a wide range of phenomena in the THz or far infrared spectral region from 100 GHz to 5 THz. THz-TDS has wide potential for sensing and imaging. The experimental technique is described along with recent results on THz beam propagation for long base-line THz measurements. THz imaging has been demonstrated using both quasi-optical and synthetic aperture approaches, results are presented including images of scatterers as well as non-destructive evaluation of ceramics. Two potential sensing applications of THz-TDS are discussed, thin film characterization and use of waveguides for sensing.

Paper Details

Date Published: 8 September 2004
PDF: 11 pages
Proc. SPIE 5411, Terahertz for Military and Security Applications II, (8 September 2004); doi: 10.1117/12.555373
Show Author Affiliations
R. Alan Cheville, Oklahoma State Univ. (United States)
Matthew T. Reiten, Oklahoma State Univ. (United States)
John O'Hara, Los Alamos National Lab. (United States)
Daniel R. Grischkowsky, Oklahoma State Univ. (United States)

Published in SPIE Proceedings Vol. 5411:
Terahertz for Military and Security Applications II
R. Jennifer Hwu; Dwight L. Woolard, Editor(s)

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