Theoretical scheme of thermal-light many-ghost imaging byNth-order intensity correlation

Abstract

In this paper, we propose a theoretical scheme of many-ghost imaging in terms of N th-order correlated thermal light. We obtain the Gaussian thin lens equations in the many-ghost imaging protocol. We show that it is possible to produce N − 1 ghost images of an object at different places in a nonlocal fashion by means of a higher order correlated imaging process with an N th-order correlated thermal source and correlation measurements. We investigate the visibility of the ghost images in the scheme and obtain the upper bounds of the visibility for the N th-order correlated thermal-light ghost imaging. It is found that the visibility of the ghost images can be dramatically enhanced when the order of correlation becomes larger. It is pointed out that the many-ghost imaging phenomenon is an observable physical effect induced by higher order coherence or higher order correlations of optical fields.

Image quality in double- and triple-intensity ghost imaging with classical partially polarized light

“…There are two principal ways of extending this to higher orders, one of which assumes that I 1 · · · I N min = I 1 · · · I N [37] and the other that I 1 · · · I N min = I 1 · · · I N −1 I N [26]. Translated to the triple-intensity imaging schemes of Fig.…”

Positive and Negative Ghost Imaging

“…Besides the debate on fundamental physics, GI with different sources and related potential applications attracted considerable research interests, such as visible and infrared sources for remote sensing and turbulence-free detection [9][10][11][12][13][14], X-ray and fluorescent sources for medical imaging [15][16][17][18][19], etc. Meanwhile, in order to steer GI towards practical applications, high imaging quality and efficiency are in great demand, which sparked lots of studies on the GI reconstruction algorithms, including high-order ghost imaging (HGI) [20][21][22][23][24][25][26][27][28][29], differential GI [30], compressive ghost imaging (CGI) [31], etc.…”