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Scrambling metasurfaces

WebSep 12, 2024 · Our scrambling metasurface is made of amorphous silicon with a uniform subwavelength height, a nearly continuous phase coverage, a lightweight, flexible design, and low-heat dissipation. Thus, it... We would like to show you a description here but the site won’t allow us. WebApr 13, 2024 · Using these devices, we achieve high fidelity polarization generation with a polarization extinction ratio up to 41.9 dB and fast polarization scrambling with a scrambling rate up to 65 Mrad s −1, both of which are best results in integrated optics. We also demonstrate the endless polarization state tracking operation in our devices.

High-performance polarization management devices based on …

WebThe scanning electron microscope (SEM) image (top right) shows fabricated 2D metasurfaces, the Fourier space image (bottom right) shows transmitted light from a … WebOct 14, 2024 · Metasurfaces open a new direction in optoelectronics, allowing researchers to design optical elements by shaping the wavefront of electromagnetic waves relative to size, shape and arrangement of... isl78434 https://groupe-visite.com

Metasurface-enabled three-in-one nanoprints by multifunctional ...

WebJan 15, 2024 · Optical metasurfaces—planar nanostructured devices that can arbitrarily tailor the wavefront of light—may be reconfigured by changing their dielectric environment. The application of external stimuli to liquid crystals is a particularly promising means of tuning the optical properties of embedded metasurfaces because of liquid crystals’ large … WebDec 17, 2024 · Apparently, the metasurface is a dual-color nanoprint observed under a white light illumination without polarization control. Actually, two additional information channels have been hidden into the metasurface, and the corresponding images can be decoded by utilizing specific optical keys. WebSep 30, 2024 · Metasurface-based optical elements typically manipulate light waves by imparting space-variant changes in the amplitude and phase with a dense array of … key follower

Schematic illustration and experimental results of the …

Category:Introduction of Metasurfaces SpringerLink

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Scrambling metasurfaces

Continuous-phase-transformation acoustic metasurface

WebMay 5, 2024 · Despite the exciting progress, studies on active metasurfaces still await further research endeavors. So far, metal- and dielectric-based metasurfaces have been continuously improved to exhibit remarkable performance and high efficiencies (1–7).However, the working elements of the metasurfaces, namely, the metallic or … WebAug 26, 2024 · Metasurfaces are ultrathin planar optical devices made up of arrays of nanoresonators. Their subwavelength thickness (a few hundred nanometers) renders them effectively two-dimensional. That makes ...

Scrambling metasurfaces

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WebAug 17, 2024 · By dividing the metasurface into different parts, the segmenting metasurfaces have showcased their ability to integrate different functions, e.g., imaging … WebMetasurfaces: scrambling light for 3D detection and recognition Firing light at a manufactured "metasurface"—one carrying patterns at a smaller scale than the …

WebDec 1, 2024 · Metasurfaces are 2D forms of metamaterials with subwavelength structures perpendicular to the propagating directions of incident electromagnetic waves. Metasurfaces are, in most cases, planar and optically thin, which can be realized by 2D fabrication technologies. WebApr 13, 2024 · In this review, we focus on various NIL technologies for the manufacturing of metasurfaces. First, we briefly describe conventional NIL and then present various NIL …

WebNov 1, 2024 · The periodic metasurfaces are designed with the design frequency f0 = 3430 Hz. According to Eq. (5), the metasurface thickness h = 0.1 m can be obtained. For aperiodic metasurfaces, the design frequency f0 = 3430 Hz is only a reference to the incident acoustic frequency used in the simulation. WebMar 1, 2015 · The ability to bend, stretch, and roll metamaterial devices on flexible substrates adds a new dimension to aspects of manipulating electromagnetic waves and …

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WebHere we demonstrate a new principle and design for DoFP-PCs based on dielectric metasurfaces with the ability to control polarization and phase. Instead of polarization … key fob wristlet hardwareWebMay 17, 2024 · Abstract. Optical metasurfaces have provided us with extraordinary ways to control light by spatially structuring materials. The space-time duality in Maxwell’s equations suggests that additional structuring of metasurfaces in the time domain can even further expand their impact on the field of optics. key follower to mean a pie flavorWebIn electromagnetic theory, metasurfaces modulate the behaviors of electromagnetic waves through specific boundary conditions, rather than constitutive parameters in three … isl78365arz-t7aWebJan 12, 2024 · The scattered fields of these metasurfaces are represented by an adiabatic approximate model under the incidence of a normal plane wave. The experimental demonstration of this metasurface is accomplished by a 8 × 8 space-time coding and programmable metasurface loaded with PIN diodes. isl78444isl78845WebNational Center for Biotechnology Information keyfold farm broughtonWebMar 24, 2024 · Metasurfaces, characterized by a reduced dimensionality of MMs, have been gaining increasing attention as they possess great feasibility for realization and demonstrate exceptional abilities for light molding beyond that offered by conventional planar interfaces. 5 They usually consist of flat optical resonator arrays with spatially varying ... isl78301fvebz-t7a