The stand-off imaging properties of a terahertz (THz) interferometric array are examined. For this application, the imaged object is in the near-field region limit of the imaging array. In this region, spherical and circular array architectures can compensate for near-field distortions and increase the field of view and depth of focus. Imaging of THz point sources is emphasized to demonstrate the imaging method and to compare theoretical predictions to experimental performance.
© 2006 Optical Society of America
Original Manuscript: September 29, 2005
Manuscript Accepted: October 24, 2005
Aparajita Bandyopadhyay, Andrei Stepanov, Brian Schulkin, Michael D. Federici, Amartya Sengupta, Dale Gary, John F. Federici, Robert Barat, Zoi-Heleni Michalopoulou, and David Zimdars, "Terahertz interferometric and synthetic aperture imaging," J. Opt. Soc. Am. A 23, 1168-1178 (2006)