Effect of fabrication defects on wavefront control characteristics of terahertz dielectric metamaterials
Sign Up to like & getrecommendations! Published in 2025 at "Measurement Science and Technology"
DOI: 10.1088/1361-6501/adfc82
Abstract: We clarified the effects of fabrication defects on the wavefront control characteristics of dielectric metamaterials deflecting terahertz waves, and also proposed and demonstrated a design that reduces the effects. Dielectric metamaterials, in which microstructures such… read more here.
Keywords: control characteristics; wavefront control; fabrication; dielectric metamaterials ... See more keywords
Wavefront Control of 2D Curved Coding Metasurfaces Based on Extended Array Theory
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2019.2905656
Abstract: We extend the array theory to design 2D curved coding metasurfaces in order to achieve arbitrary wavefront control. The extended array theory establishes the relationship between wavefront and curved-surface, which provides a simple and effective… read more here.
Keywords: array; curved coding; wavefront control; array theory ... See more keywords
Optimization of Iterative Control Algorithms for High-Resolution Adaptive Optics Systems
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2024.3383792
Abstract: As the number of wavefront sensor subapertures and deformable mirror actuators in adaptive optics systems increases, the computational time of the direct gradient wavefront control algorithm is excessively long, which is a major factor affecting… read more here.
Keywords: optics systems; control; wavefront control; optics ... See more keywords
Wavefront control in adaptive microscopy using Shack-Hartmann sensors with arbitrarily shaped pupils.
Sign Up to like & getrecommendations! Published in 2018 at "Optics express"
DOI: 10.1364/oe.26.001655
Abstract: In adaptive optical microscopy of thick biological tissue, strong scattering and aberrations can change the effective pupil shape by rendering some Shack-Hartmann spots unusable. The change of pupil shape leads to a change of wavefront… read more here.
Keywords: pupil; arbitrarily shaped; microscopy; control ... See more keywords
Average-stitching wavefront control method for solar dual-conjugate adaptive optics.
Sign Up to like & getrecommendations! Published in 2025 at "Optics express"
DOI: 10.1364/oe.560949
Abstract: In solar observation, multi-conjugate adaptive optics (MCAO) enable ground-based large-aperture telescopes to achieve near-diffraction-limited imaging across a broad field of view by overcoming the effects of three-dimensional atmospheric turbulence with two to three wavefront correctors… read more here.
Keywords: method; wavefront control; optics; adaptive optics ... See more keywords
Electrically tunable lens with a non-monotonic wavefront control capability.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.465018
Abstract: We describe an electrically tunable liquid crystal lens that can produce a rich variety of wavefronts, including sombrero-type (non-monotonic) phase modulation, enabling the focusing of light into a ring-shaped intensity distribution. The lens can also… read more here.
Keywords: electrically tunable; lens non; monotonic wavefront; non monotonic ... See more keywords