2021-03-30
Spatial coherence control and analysis via micromirror-based mixed-state ptychography
Publication
Publication
Flexible and fast control of the phase and amplitude of coherent light, enabled by digital micromirror devices (DMDs) and spatial light modulators (SLMs), 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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General Physics and Astronomy | |
IOP | |
doi.org/10.1088/1367-2630/abf389 | |
New J. Phys. | |
Organisation | Resonant Nanophotonics |
Röhrich, R, Koenderink, A.F, Witte, S, & Loetgering, L. (2021). Spatial coherence control and analysis via micromirror-based mixed-state ptychography. New J. Phys.. doi:10.1088/1367-2630/abf389
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