期刊
NEW JOURNAL OF PHYSICS
卷 23, 期 5, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1367-2630/abf389
关键词
coherence; ptychography; inverse modeling; computational imaging; wavefront sensing
资金
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek [13934]
- European Research Council [637476]
- European Research Council (ERC) [637476] Funding Source: European Research Council (ERC)
This study presents an approach to coherence engineering that combines a quasi-monochromatic thermal source and a DMD, enabling control over spatially partially coherent light through a ptychographic scanning microscope. This method opens up new routes to low-cost coherence control, with potential applications in micromanipulation, nanophotonics, and quantitative phase contrast imaging.
Flexible and fast control of the phase and amplitude of coherent light, enabled by digital micromirror devices (DMDs) and spatial light modulators, has been a driving force for recent advances in optical tweezers, nonlinear microscopy, and wavefront shaping. In contrast, engineering spatially partially coherent light remains widely elusive due to the lack of tools enabling a joint analysis and control sequence. Here, we report an approach to coherence engineering that combines a quasi-monochromatic, thermal source and a DMD together with a ptychographic scanning microscope. The reported method opens up new routes to low-cost coherence control, with applications in micromanipulation, nanophotonics, and quantitative phase contrast imaging.
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