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- W4367672539 abstract "Flat optics has been considered promising for constructions of spaceborne imaging systems with apertures in excess of 10 m. Despite recent advances, there are long-existing challenges to perform in-phase stitching of multiple flat optical elements. Phasing the segmented planar instrument has remained at the proof of concept. Here, we achieve autonomous system-level cophasing of a 1.5-m stitching flat device, bridging the gap between the concept and engineering implementation. To do so, we propose a flat element stitching scheme, by manipulating the point spread function, which enables our demonstration of automatically bringing seven flat segments’ tip/tilt and piston errors within the tolerance. With phasing done, the 1.5-m system has become the largest phased planar instrument ever built in the world, to our knowledge. The first demonstration of phasing the large practical flat imaging system marks a significant step towards fielding a 10-m class one in space, also paving the way for ultrathin flat imaging in various remote applications." @default.
- W4367672539 created "2023-05-03" @default.
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- W4367672539 date "2023-06-28" @default.
- W4367672539 modified "2023-10-12" @default.
- W4367672539 title "1.5-m flat imaging system aligned and phased in real time" @default.
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- W4367672539 doi "https://doi.org/10.1364/prj.486637" @default.
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