Results 11 to 20 of about 2,375 (203)
How good is your metalens? Experimental verification of metalens performance criterion [PDF]
Optics Letters, 2020 A metric for evaluation of overall metalens performance is presented. It is applied to determination of optimal operating spectral range of a metalens, both theoretically and experimentally. This metric is quite general and can be applied to the design and evaluation of future metalenses, particularly achromatic metalenses.
Jacob Engelberg +6 more
core +6 more sources
Thermally reconfigurable metalens
Nanophotonics, 2022 Abstract Reconfigurable metalenses are compact optical components composed by arrays of meta‐atoms that offer unique opportunities for advanced optical systems, from microscopy to augmented reality platforms. Although poorly explored in the context of reconfigurable metalenses, thermo‐optical effects in resonant silicon nanoresonators
Archetti, Anna +5 more
core +7 more sources
Specialized directional beaming through a metalens and a typical application [PDF]
Nanophotonics, 2018 The anomalous beaming effect of the periodic metallic corrugations functioning as a special case of kSP=2π/Λ is discussed and verified by means of both theoretical calculation and experimental probing.
Zhao Kangyi +3 more
doaj +3 more sources
Spherical Aberration-Corrected Metalens for Polarization Multiplexed Imaging
Nanomaterials, 2021 We present a terahertz spherical aberration-corrected metalens that uses the dynamic phase to achieve polarization multiplexed imaging. The designed metalens has polarization–dependent imaging efficiencies and polarization extinction ratios that exceed ...
Shaodong Zhou +3 more
doaj +2 more sources
Actively Tunable Metalens Array Based on Patterned Phase Change Materials
Applied Sciences, 2019 Recently, the metalens has been investigated for its application in many fields due to its advantages of being much smaller than a conventional lens and is compatible with nano-devices.
Wei Bai +7 more
doaj +2 more sources
Compact multi-foci metalens spectrometer
Light: Science & Applications, 2023 A lightweight and portable spectrometer is desirable for miniaturization and integration. The unprecedented capability of optical metasurfaces has shown much promise to perform such a task.
Ruoxing Wang +9 more
doaj +2 more sources
Nature inspired design methodology for a wide field of view achromatic metalens [PDF]
NanophotonicsMetalenses have become ubiquitous in academic research and have begun to make their transition to industry. However, chromatic aberration still greatly limits the applications of metalenses.
Engelberg Jacob +2 more
doaj +2 more sources
Focus control of wide-angle metalens based on digitally encoded metasurface
Opto-Electronic AdvancesBased on the principle of super-symmetric lens with quadratic phase gradient transformation, combined with the principle of digital coding of metasurface, we propose a wide-angle coded metalens for focusing control in two-dimensional space. This metalens
Yixin Liu, Yongxing Jin, Bo Fang
exaly +3 more sources
The Principle and Application of Achromatic Metalens. [PDF]
Micromachines (Basel)Metalenses, as ultrathin planar optical devices based on metasurfaces, have attracted significant research interest in recent years due to their compact structure and versatile light manipulation, showing great potential to replace traditional lenses in specific applications.
Liu R, Li L, Zhou J.
europepmc +4 more sources
Theoretical Design of a Bionic Spatial 3D-Arrayed Multifocal Metalens
Biomimetics, 2022 With the development of micro/nano-optics, metasurfaces are gaining increasing attention working as novel electromagnetic wave control devices. Among which, metalenses have been developed and applied as a typical application of metasurfaces owing to ...
Guihui Duan +3 more
doaj +2 more sources