We report the first (to our knowledge) far-field ghost images formed with phase-sensitive classical-state light and compare them with ghost images of the same object formed with conventional phase-insensitive classical-state light. To generate signal and reference beams with phase-sensitive cross correlation, we used a pair of synchronized spatial light modulators that imposed random, spatially varying, anticorrelated phase modulation on the outputs from 50-50 beam splitting of a laser beam. In agreement with theory, we found the phase-sensitive image to be inverted, whereas the phase-insensitive image is erect, with both having comparable spatial resolutions and signal-to-noise ratios.
© 2011 Optical Society of America
Original Manuscript: May 18, 2011
Revised Manuscript: August 1, 2011
Manuscript Accepted: August 3, 2011
Published: September 14, 2011
Dheera Venkatraman, Nicholas D. Hardy, Franco N. C. Wong, and Jeffrey H. Shapiro, "Classical far-field phase-sensitive ghost imaging," Opt. Lett. 36, 3684-3686 (2011)