Results 51 to 60 of about 2,375 (203)
High-efficiency broadband achromatic metalens for near-IR biological imaging window
Nature Communications, 2021 Though broadband achromatic metalens are attractive for biological applications, existing metalenses show limited performance in the biological imaging window.
Yujie Wang +10 more
doaj +1 more source
Broadband Achromatic Metalens in the Long-Wave Infrared Regime
IEEE Photonics Journal, 2023 Compared with conventional lenses, metalenses can offer smaller form factor, light weight and new functionality, and have become the focus of the recent investigations of metasurface.
Yongjian Zheng +6 more
doaj +1 more source
Multispectral Chiral Imaging with a Metalens
Nano Letters, 2016 The vast majority of biologically active compounds, ranging from amino acids to essential nutrients such as glucose, possess intrinsic handedness. This in turn gives rise to chiral optical properties that provide a basis for detecting and quantifying enantio-specific concentrations of these molecules.
Khorasaninejad, M. +6 more
openaire +8 more sources
High-Efficiency Achromatic Metalens Topologically Optimized in the Visible
Nanomaterials, 2023 Metalens, composed of arrays of nano-posts, is an ultrathin planar optical element used for constructing compact optical systems which can achieve high-performance optical imaging by wavefront modulating.
Lijuan Zhang +5 more
doaj +1 more source
High numerical aperture RGB achromatic metalens in the visible
, 2022 We theoretically and experimentally demonstrate an RGB achromatic metalens that operates concurrently at three visible wavelengths (lambda = 450, 532, and 700 nm) with a high numerical aperture of 0.87.
KIM, JOOHOON +7 more
core +1 more source
TRIM: Simultaneous Thermometry, Ranging, and Imaging via a Monolithic Metalens
Advanced Science, EarlyView.ABSTRACT While metasurfaces offer a pathway beyond the discrete architectures of conventional LWIR systems, physically fusing high‐precision thermometry and passive ranging onto a single metalens remains a formidable challenge. Here, we demonstrate a monolithic, dual‐focus metalens capable of simultaneous multidimensional sensing.
Man Yuan +10 more
wiley +1 more source
Recent Advances in Programmable Metasurfaces and Meta‐Devices
Advanced Electronic Materials, EarlyView.Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao +4 more
wiley +1 more source
Metalens for Miniaturized Microscope
, 2023 Miniaturized microscopes with large field-of-view (FOV) have wide applications in biomedical imaging and automated machine vision. The glass based miniaturized microscopes inherit the system configuration from the conventional microscopes, as well as the
Hu, Junjie
core
Bidirectional Switchable Metalens Based on Phase Change Materials of GST
IEEE Photonics Journal, 2023 Metalens can achieve more challenging functions especially dynamic regulation than traditional lens due to its unprecedented ability to manipulate light. In this paper, an approach to realizing switchable bidirectional metalens is proposed based on phase
Yuke Li +7 more
doaj +1 more source
Advanced Intelligent Systems, EarlyView.A piezoelectric meta‐transducer generates an ultrasonic rainbow, steering guided elastic waves to different angles according to frequency. A dithering‐based binary electrode design enables a closer realization of the target wavenumber filter, improving directional purity and suppressing unwanted lobes. Numerical and experimental validation demonstrates
Masoud Mohammadgholiha +5 more
wiley +1 more source