We show theoretically that high-order thermal ghost imaging has considerably higher visibility and contrast-to-noise ratio than conventional thermal ghost imaging, which utilizes the lowest-order intensity cross correlation of the object and the reference signal. We also deduce the optimal power order of the correlation that gives the best contrast-to-noise ratio.
© 2009 Optical Society of America
Original Manuscript: July 22, 2009
Revised Manuscript: September 15, 2009
Manuscript Accepted: September 23, 2009
Published: October 27, 2009
Kam Wai Clifford Chan, Malcolm N. O'Sullivan, and Robert W. Boyd, "High-order thermal ghost imaging," Opt. Lett. 34, 3343-3345 (2009)