THz time domain sensing and imaging

R. Alan Cheville; Matthew T. Reiten; John O'Hara; Daniel R. Grischkowsky

doi:10.1117/12.555373

8 September 2004 THz time domain sensing and imaging

R. Alan Cheville, Matthew T. Reiten, John O'Hara, Daniel R. Grischkowsky

Proceedings Volume 5411, Terahertz for Military and Security Applications II; (2004) https://doi.org/10.1117/12.555373
Event: Defense and Security, 2004, Orlando, Florida, United States

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.

Citation Download Citation

R. Alan Cheville, Matthew T. Reiten, John O'Hara, and Daniel R. Grischkowsky "THz time domain sensing and imaging", Proc. SPIE 5411, Terahertz for Military and Security Applications II, (8 September 2004); https://doi.org/10.1117/12.555373

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