title: Ghost imaging with different frequencies through non-degenerated four-wave mixing.
abstract: As a novel imaging method, ghost imaging has been widely explored in various fields of research, such as lensless ghost imaging, computational ghost imaging, turbulence-free ghost imaging. Recently, ghost imaging in non-degenerated system with pseudo-thermal light has been discussed theoretically, however, to our best knowledge, no experimental evidence has been proven yet. In this paper, we propose a new approach to realize ghost imaging with different frequencies, which are generated through a non-degenerated four-wave mixing(FWM) process in Rb vapor. In our experiment, by employing pseudo-thermal light as the probe beam, we found that the generated FWM signal has a strong second-order correlation with the original thermal light. On basis of that, we successfully implement non-degenerate ghost imaging, and reconstruct highly similar images of objects.
authors: Ya
authors: Y
authors: Yu
authors: Chengyuan
authors: C
authors: Wang
authors: Jun
authors: J
authors: Liu
authors: Jinwen
authors: J
authors: Wang
authors: Mingtao
authors: M
authors: Cao
authors: Dong
authors: D
authors: Wei
authors: Hong
authors: H
authors: Gao
authors: Fuli
authors: F
authors: Li