Resonant metasurfaces for generating
WebWe use numerical simulations to demonstrate third-harmonic generation with near-unity nonlinear circular dichroism (CD) and high conversion efficiency () in asymmetric Si-on-SiO metasurfaces. The working principle reli… WebApr 10, 2024 · Aimed at generating a bandgap — a zone without propagation ... but this method can be extended to design resonant metasurfaces that can control other types of guided waves regardless of ...
Resonant metasurfaces for generating
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WebOptical metasurfaces consist of 2D arrangements of scatterers, and they control the amplitude, phase, and polarization of an incidence field on demand. Optical metasurfaces are the cornerstone for a future generation of flat optical devices in a … WebAug 26, 2024 · More information: Tomás Santiago-Cruz et al, Resonant metasurfaces for generating complex quantum states, Science (2024). DOI: 10.1126/science.abq8684 …
WebApr 21, 2024 · By enhancing the quantum vacuum field, our metasurfaces boost the emission of photon pairs within narrow resonance bands at multiple selected … WebModulation of metasurfaces in time enables several exotic scattering phenomena by breaking the time-reversal symmetry and generation of frequency harmonics. We introduce a novel design paradigm for time-modulated metasurfaces, offering electrically tunable engineering of the generated frequency harmonics and their emerging wavefronts by …
WebThe first is the development of a new modeling approach to optical metasurfaces (consisting of two-dimensional arrays of resonant nanoantennas), ... configurations for advanced applications in nanophotonics: from all -optical control of the structure of light to heat generation at the nanoscale and the catalysis of chemical reactions in WebAug 16, 2024 · Metasurfaces composed of plasmonic nanoantennas generate a highly enhanced local field when supported by reflective substrates, enabling efficient harmonic …
WebNov 12, 2024 · Lithium niobate is an excellent and widely used material for nonlinear frequency conversion due to its strong optical nonlinearity and broad transparency region. …
WebJun 2, 2024 · Nonlinear metasurfaces provide a promising platform for integrated nonlinear photonic devices owing to their unprecedented capability of nonlinear wavefront manipulation. ... Here, the resonant nonlinear synthetic metasurface is proposed and experimentally demonstrated for independent phase and amplitude modulations of the … farfalle wine and moreWebJul 21, 2024 · The research is detailed in the paper “Generation of Even and Odd High Harmonics in Resonant Metasurfaces Using Single and Multiple Ultra-Intense Laser Pulses,” published July 7 in Nature Communications.Maxim Shcherbakov, who conducted the research as a Cornell postdoctoral associate before becoming an assistant professor at … farfalle with cauliflower and turkey sausageWebWith the increasing thickness of the analyte layer a gradual red-shift of the resonance mode is observed. The sensitivities and figure of merit (FoM) of all the metasurfaces are derived and compared. The resonant dark modes in asymmetric metasurfaces are found to display substantially better FoM as compared to the typical dipolar modes. farfalle with creamy bacon sauceWebApr 11, 2024 · Optically controlled metasurfaces achieve dynamic dual-mode modulation by varying the wavelength of pumping light. Credit: Zhou et al., doi 10.1117/1.AP.5.2.026005. Dynamic control of terahertz (THz) waves at-will with an ultracompact device is important for THz technologies in biomedical imaging, telecommunications, detection, and beyond. farfalle with peasWeb2 days ago · He adds, “These functionalities may be useful for numerous applications, such as sensing, security, and next generation wireless communications.” Read the Gold Open Access article by H. Zhou, S. Zhang, S. Wang, et al., “ Optically controlled dielectric metasurfaces for dynamic dual-mode modulation on terahertz waves ,” Adv. Photon. 5(2) … farfalle with mushrooms and spinachWebThe introduction of engineered resonance phenomena on surfaces has opened a new frontier in surface science and technology. Pillared phononic crystals, metamaterials, and metasurfaces are an emerging class of artificial structured materials, featuring surfaces, that consist of pillars-or branching substructures-standing on a substrate or a plate. farfalle with herbs and goat cheeseWeb2 days ago · In the future, the new non-reciprocal metasurfaces created by Yang, Qin and their colleagues could be used to develop new promising electronics, including non-reciprocal antennas and radomes. In addition, the innovative design they create could inspire other teams to create other similar metasurfaces based on self-biased magnetic meta … farfalle with pancetta and peas