Results 41 to 50 of about 70,205 (364)
Active nonlocal metasurfaces [PDF]
Nanophotonics, 2020 AbstractActively tunable and reconfigurable wavefront shaping by optical metasurfaces poses a significant technical challenge often requiring unconventional materials engineering and nanofabrication. Most wavefront-shaping metasurfaces can be considered “local” in that their operation depends on the responses of individual meta-units.
Adam C. Overvig +4 more
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Cascaded Channel Estimation for Large Intelligent Metasurface Assisted Massive MIMO [PDF]
IEEE Wireless Communications Letters, 2019 In this letter, we consider the problem of channel estimation for large intelligent metasurface (LIM) assisted massive multiple-input multiple-output (MIMO) systems. The main challenge of this problem is that the LIM integrated with a large number of low-
Zhen-Qing He, Xiaojun Yuan
semanticscholar +1 more source
Metasurfaces for quantum photonics [PDF]
Nature Photonics, 2021 Rapid progress in the development of metasurfaces allowed to replace bulky optical assemblies with thin nanostructured films, often called metasurfaces, opening a broad range of novel and superior applications to the generation, manipulation, and detection of light in classical optics.
Alexander S. Solntsev +2 more
openaire +4 more sources
Chiral Metasurface for Near-Field Imaging and Far-Field Holography Based on Deep Learning
Micromachines, 2023 Chiral metasurfaces have great influence on the development of holography. Nonetheless, it is still challenging to design chiral metasurface structures on demand.
Yihang Qiu +5 more
doaj +1 more source
Computational spectropolarimetry with a tunable liquid crystal metasurface
eLight, 2022 While conventional photodetectors can only measure light intensity, the vectorial light field contains much richer information, including polarization and spectrum, that are essential for numerous applications ranging from imaging to telecommunication ...
Yibo Ni +5 more
semanticscholar +1 more source
OSA Quantum 2.0 Conference, 2020 We introduce quantum metasurfaces: a new interface for quantum light-matter interaction which is realized by atomic arrays, and enables generation of atom-photon entanglement and many-body photonic states suitable for quantum information processing.
Bekenstein, Rivka +5 more
openaire +2 more sources
Luminescent hyperbolic metasurfaces [PDF]
Nature Communications, 2017 AbstractWhen engineered on scales much smaller than the operating wavelength, metal-semiconductor nanostructures exhibit properties unobtainable in nature. Namely, a uniaxial optical metamaterial described by a hyperbolic dispersion relation can simultaneously behave as a reflective metal and an absorptive or emissive semiconductor for electromagnetic ...
Smalley, JST +9 more
openaire +4 more sources
Sensors, 2022 Proof of concept of a new real-time metasurface sensor for micropoison monitoring in aqueous solutions is proposed in this study. The sensor comprises a perfect absorber metasurface and gold nanoparticle layer on the front side of it.
Amir Abramovich +2 more
doaj +1 more source
The Design of Dual Band Stacked Metasurfaces Using Integral Equations [PDF]
, 2021 An integral equation-based approach for the design of dual band stacked metasurfaces which are invariant in one-dimension is presented. The stacked metasurface will generate collimated beams at desired angles in each band upon reflection. The conductor-backed stacked metasurface consists of two metasurfaces (a patterned metallic cladding supported by a
arxiv +1 more source
All-dielectric metasurface for high-performance structural color
Nature Communications, 2020 The achievement of structural color has shown advantages in large-gamut, high-saturation, high-brightness, and high-resolution. While a large number of plasmonic/dielectric nanostructures have been developed for structural color, the previous approaches ...
Wenhong Yang +8 more
semanticscholar +1 more source