We demonstrate terahertz (THz) imaging with enhanced spatial resolution by a synthetic phased array. A single mirror is used to separately form two different coherent, diffraction-limited THz images of the same point source. The two images are combined to yield a 4× resolution-enhanced image of the source in one dimension.
© 2002 Optical Society of America
John O'Hara and D. Grischkowsky, "Synthetic phased-array terahertz imaging," Opt. Lett. 27, 1070-1072 (2002)