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Published in 2022 at "Applied optics"
DOI: 10.1364/ao.439569
Abstract: The direct detection and imaging of exoplanets requires the use of high-contrast adaptive optics (AO). In these systems quasi-static aberrations need to be highly corrected and calibrated. To achieve this, the pupil-modulated point-diffraction interferometer (m-PDI)…
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Keywords:
dynamic range;
concept validation;
point diffraction;
adaptive optics ... See more keywords
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1
Published in 2022 at "Applied optics"
DOI: 10.1364/ao.461806
Abstract: A point diffraction interferometer based on silicon nitride waveguide (WG-PDI), adopting a silicon nitride waveguide spherical wave source (WG-SWS) with Si substrate and SiO2 cladding, is proposed for spherical surface testing. The WG-SWS is used…
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Keywords:
silicon nitride;
point diffraction;
spherical wave;
diffraction interferometer ... See more keywords