Metasurface Freeform Nanophotonics
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/s41598-017-01908-9
Abstract: Freeform optics aims to expand the toolkit of optical elements by allowing for more complex phase geometries beyond rotational symmetry. Complex, asymmetric curvatures are employed to enhance the performance of optical components while minimizing their… read more here.
Keywords: freeform optics; freeform; optics; metasurface freeform ... See more keywords
Utilizing freeform optics in dynamic optical configuration designs
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Astronomical Telescopes, Instruments, and Systems"
DOI: 10.1117/1.jatis.5.3.035005
Abstract: Abstract. A linear field of view (FOV) K-mirror system used for image derotation is presented as a case example for how to leverage freeform surfaces in dynamic optical configuration design. As the K-mirror rotates about… read more here.
Keywords: mirror; freeform; dynamic optical; freeform optics ... See more keywords
Freeform optics characterization with surface registration and fitting algorithms for optical point-based spatial path 3D topography metrology.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.477299
Abstract: Accurate characterization of the form error for freeform optics is critical for controlled manufacturing and evaluation of optical properties. To solve the difficulty of current surface registration and fitting algorithms, and improve characterization accuracy of… read more here.
Keywords: topography; freeform optics; registration; optics ... See more keywords
Freeform optics design for extended sources in paraxial approximation exploiting the expectation maximization algorithm.
Sign Up to like & getrecommendations! Published in 2020 at "Optics express"
DOI: 10.1364/oe.412541
Abstract: Freeform optics generating specific irradiance distributions have been used in various applications for some time now. While most freeform optics design algorithms assume point sources or perfectly collimated light, the search for algorithms for non-idealized… read more here.
Keywords: optics design; freeform optics; optics; expectation maximization ... See more keywords
Effect of retrace error on stitching coherent scanning interferometry measurements of freeform optics.
Sign Up to like & getrecommendations! Published in 2021 at "Optics express"
DOI: 10.1364/oe.433435
Abstract: We report on the effect of retrace error during measurement of freeform optics using a commercial coherence scanning interferometer (CSI), and its in-built stitching capabilities. It is shown that measuring segments of freeform optics under… read more here.
Keywords: optics; freeform optics; retrace error; effect retrace ... See more keywords
Metrology Data-Based Simulation of Freeform Optics
Sign Up to like & getrecommendations! Published in 2018 at "Applied Sciences"
DOI: 10.3390/app8122338
Abstract: This paper describes the approach to use measurement data to enhance the simulation model for designing freeform optics. Design for manufacturing of freeform optics is still challenging, since the classical tolerancing procedures cannot be applied.… read more here.
Keywords: freeform optics; optics; simulation; approach ... See more keywords