Metasurface
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Related Articles from SNS
A quantum metasurface breakthrough could finally close the terahertz gap
A quantum metasurface breakthrough could finally close the terahertz gap A quantum-powered metasurface breakthrough could finally make terahertz technology far more practical, sensitive, and widely usable. - Date: - May 31, 2026 - Source: - SPIE--International Society for Optics and Photonics - Summary: - Researchers have developed a compact quantum detector that makes terahertz radiation much easier to detect. A specially designed metasurface funnels incoming energy into tiny active...
Inverse Design of Realizable Metasurface based Absorbers using Improved Conditioning and Diversity Enhanced Progressively Growing GANs
arXiv:2606.05849v1 Announce Type: cross Abstract: Metasurfaces enable precise manipulation of electromagnetic waves for applications such as beam steering, sensing, and stealth technology. However, inverse design of metasurfaces with targeted EM responses remains challenging due to the computational expense of iterative full wave simulation driven optimization and the limited conditioning fidelity and diversity of existing generative approaches. To address these challenges, this paper...
Inverse Design of Realizable Metasurface based Absorbers using Improved Conditioning and Diversity Enhanced Progressively Growing GANs
arXiv:2606.05849v1 Announce Type: new Abstract: Metasurfaces enable precise manipulation of electromagnetic waves for applications such as beam steering, sensing, and stealth technology. However, inverse design of metasurfaces with targeted EM responses remains challenging due to the computational expense of iterative full wave simulation driven optimization and the limited conditioning fidelity and diversity of existing generative approaches.
Optical chirality of membrane metasurfaces with broken in-plane symmetry
arXiv:2606.05775v1 Announce Type: new Abstract: We study chiroptical properties of single-layer dielectric membrane metasurfaces with broken in-plane symmetry. In sharp contrast to a common belief that chiral optical phenomena require symmetry breaking in the vertical direction, we show that flat single-layer metasurfaces are capable of strong specific chiral effects. Although the single-layer geometry forbids conventional co-polarized circular dichroism, strong resonant conversion circular...
Rewritable Chirality of Metasurfaces with Permittivity-Asymmetric Flatband Quasi-Bound States in the Continuum
new Abstract: Flatband eigenstates are widely applied to enhance angle-robust light-matter interactions in metaphotonics. However, controlling the polarization of flatbands remains challenging, as it is usually fixed once the metasurface is fabricated, with no options of post-fabrication modification. Here, we present a rewritable permittivity-asymmetric quasi-bound state in the continuum ({\epsilon}-qBIC) metasurface platform, where selective polymethyl methacrylate (PMMA) coating of a...
Picometer-Scale Spatial Symmetry Breaking in Active Transmissive Metasurfaces
Announce Type: replace Abstract: Active transmissive metasurfaces are central building blocks for future compact, cascadable optical systems, enabling the stacking of multiple functional layers for advanced dynamic beam shaping, photonic neural networks, depth sensing, and holography. We present a transmissive electro-optic metasurface based on silicon-on-lithium-niobate, where an array of silicon waveguides with periodic perturbations, individually controlled at the 100 pm scale, supports...
Wavelength-selective nonlinear wavefront control in resonant thin-film lithium niobate metasurfaces
arXiv:2601.21382v2 Announce Type: replace Abstract: Nonlinear metasurfaces offer compact control over frequency conversion and wavefront shaping. However, existing approaches, often based on geometric phase, lack wavelength selectivity, resulting in static nonlinear responses. Here, we demonstrate a thin-film lithium niobate metasurface that enables spectrally selective shaping of second-harmonic generation through resonance-engineered phase control.
Dynamic terahertz wavefront control using stretchable single-walled carbon nanotube-based metasurfaces
Dynamic terahertz wavefront control using stretchable single-walled carbon nanotube-based metasurfaces Sadie Harley Scientific Editor Alexander Pol Deputy Editor The terahertz (THz) frequency regime, sitting between microwaves and infrared light, has long promised revolutionary advances in wireless communication, security imaging and nondestructive sensing. A key roadblock, however, has been the lack of compact, dynamically tunable components capable of manipulating THz beams on demand....
Dipolar Modeling of Multipolar Metasurfaces
arXiv:2606.02033v1 Announce Type: new Abstract: Multipolar decomposition is a powerful tool for analyzing and designing metasurfaces, but its practical application is often limited by the mathematical complexity that arises when a large number of multipole moments must be taken in to account. To minimize this modeling complexity without sacrificing accuracy, we present an efficient method that exploits the coordinates origin dependence of spherical multipole moments. We show that the optimal...
Physics Guided Conditional Diffusion Framework for Generative Inverse Design of Manufacturable Metasurface based Absorbers
Announce Type: replace Abstract: Inverse design of metasurfaces under continuous electromagnetic constraints requires generation of geometries that simultaneously satisfy stringent spectral specifications and remain manufacturable. Conventional approaches based on iterative full wave simulations are computationally prohibitive for large design spaces, while existing generative models often suffer from poor conditional controllability and limited fabrication awareness. In this regard, we...