Experimental evidence of high-resolution ghost imaging and ghost diffraction with classical thermal light

摘要

High-resolution ghost image and ghost diffraction experiments are performedby using a single source of thermal-like speckle light divided by a beamsplitter. Passing from the image to the diffraction result solely relies onchanging the optical setup in the reference arm, while leaving untouched theobject arm. The product of spatial resolutions of the ghost image and ghostdiffraction experiments is shown to overcome a limit which was formerly thoughtto be achievable only with entangled photons.