期刊
JOURNAL OF OPTICS
卷 18, 期 5, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/2040-8978/18/5/055204
关键词
phase-contrast imaging; orbital angular momentum; ghost imaging
类别
资金
- UK EPSRC [EP/I012451/1]
- ERC through an Advanced Grant (TWISTS)
- Engineering and Physical Sciences Research Council [EP/I012451/1] Funding Source: researchfish
- EPSRC [EP/I012451/1] Funding Source: UKRI
We utilise the position and orbital angular momentum (OAM) correlations between the signal and idler photons generated in the down-conversion process to obtain ghost images of a phase object. By using an OAM phase filter, which is non-local with respect to the object, the images exhibit isotropic edge-enhancement. This imaging technique is the first demonstration of a full-field, phase-contrast imaging system with non-local edge enhancement, and enables imaging of phase objects using significantly fewer photons than standard phase-contrast imaging techniques.
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