Abstract-Terahertz inverse synthetic aperture radar imaging using self-mixing interferometry with a quantum cascade laser

H. S. Lui, T. Taimre, K. Bertling, Y. L. Lim, P. Dean, S. P. Khanna, M. Lachab, A. Valavanis, D. Indjin, E. H. Linfield, A. G. Davies, and A. D. Rakić  »View Author Affiliations

http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-9-2629

Optics Letters, Vol. 39, Issue 9, pp. 2629-2632 (2014)
http://dx.doi.org/10.1364/OL.39.002629

We propose a terahertz (THz)-frequency synthetic aperture radar imaging technique based on self-mixing (SM) interferometry, using a quantum cascade laser. A signal processing method is employed which extracts and exploits the radar-related information contained in the SM signals, enabling the creation of THz images with improved spatial resolution. We demonstrate this by imaging a standard resolution test target, achieving resolution beyond the diffraction limit.

© 2014 Optical Society of America