Metagratings for Efficient Wavefront Manipulation [PDF]
IEEE Photonics Journal, 2022 Recently, it was revealed that conventional gradient metasurfaces are fundamentally limited on their overall efficiency to reroute the impinging waves towards arbitrary directions in reflection and transmission.
Younes Raadi, Andrea Alu
doaj +4 more sources
Impact of Pupil Aberrations on Wavefront Manipulation [PDF]
EPJ Web of Conferences, 2021 A systematic and quantitative analysis is given of the impact of pupil aberrations on the imaging performance in wavefront manipulation applications using adaptive optical elements.
Nobis Thomas
doaj +4 more sources
Multichannel full-space coding metasurface with linearly-circularly-polarized wavefront manipulation [PDF]
NanophotonicsAchieving independent multitasked wavefront control by using an ultrathin plate is a challenge to increase information capacity in integration optics and radar applications.
Luo Huiling +8 more
doaj +4 more sources
A Single-Celled Metasurface for Multipolarization Generation and Wavefront Manipulation [PDF]
Nanomaterials, 2022 Due to their unprecedented ability to flexibly manipulate the parameters of light, metasurfaces offer a new approach to integrating multiple functions in a single optical element.
Ruonan Ji +8 more
doaj +6 more sources
High quality factor metasurfaces for two-dimensional wavefront manipulation [PDF]
Nature Communications, 2023 The strong interaction of light with micro- and nanostructures plays a critical role in optical sensing, nonlinear optics, active optical devices, and quantum optics.
Claudio U. Hail +4 more
doaj +6 more sources
Polarization-insensitive narrowband reflective wavefront manipulation through all-dielectric anisotropic subwavelength structures [PDF]
iScienceSummary: Local metasurfaces provide high flexibility in shaping wavefronts but suffer from poor frequency selectivity. Here, we numerically present a reflective all-dielectric metasurface platform achieving simultaneous local phase control and spectral ...
Meiyan Pan +3 more
doaj +3 more sources
Conformal sparse metasurfaces for wavefront manipulation [PDF]
Phys. Rev. Applied 14, 044007 (2020), 2020 While flat metasurfaces are intensively studied, theoretical modelling of conformal metasurfaces appears to be exceptionally challenging where it demands accurate analysis of the metasurface geometry. Here, it is shown how numerical calculation of Green's function can be employed to design conformal sparse metasurfaces of arbitrary geometries within ...
Vladislav Popov +2 more
arxiv +7 more sources
Ultra-Broadband Polarization Conversion Metasurface with High Transmission for Efficient Multi-Functional Wavefront Manipulation in the Terahertz Range [PDF]
Nanomaterials, 2021 Recently, terahertz (THz) wireless communication has been widely investigated as the future prospect of wireless network architecture. However, most of the natural existing materials are inapplicable for THz devices, which hinder their further ...
Xiaoqiang Jiang +3 more
doaj +2 more sources
Nonreciprocal Wavefront Manipulation in Synthetically Moving Metagratings [PDF]
Photonics, 2020 We introduce a metasurface platform for nonreciprocal wave manipulation. We study metagratings composed of nonreciprocal bianisotropic particles supporting synthetic motion, which enable nonreciprocal energy transfer between tailored Floquet channels ...
Younes Ra’di, Andrea Alù
doaj +2 more sources
Phase-change nonlocal metasurfaces for dynamic wavefront manipulation [PDF]
Physical Review Applied 21 (4), 044004 (2024), 2023 Recent advances in nonlocal metasurfaces have enabled unprecedented success in shaping the wavefront of light with spectral selectivity, offering new solutions for many emerging nanophotonics applications. The ability to tune both the spectral and spatial properties of such a novel class of metasurfaces is highly desirable, but the dynamic nonvolatile ...
Tingting Liu +7 more
arxiv +3 more sources