Results 1 to 10 of about 1,347 (174)

Metalens-style image synthesis for metalens imaging via image-to-image translation [PDF]

open access: yesScientific Reports
Metalenses offer wafer-scale, ultra-thin optics for compact cameras, but strong chromatic and field-dependent aberrations still limit their practical use.
Chanik Kang   +4 more
doaj   +4 more sources

Stretchable metalens with tunable focal length and achromatic characteristics

open access: yesResults in Physics, 2021
We propose a stretchable metalens on polydimethylsiloxane (PDMS) substrate. By stretching the stretchable metalens device along x- and y-axis directions, it exhibits highly tunable focal length and achromatic characteristics.
Yu-Sheng Lin, Bo-Ru Yang
exaly   +3 more sources

A hybrid achromatic metalens [PDF]

open access: yesNature Communications, 2020
Metalenses that correct chromatic aberration also suffer from reduced focusing efficiency. Here, the authors introduce a Hybrid Achromatic Metalens which merges a metalens and phase plate to offer improved focusing efficiency over a broad wavelength ...
F. Balli   +3 more
doaj   +4 more sources

Design of high efficiency achromatic metalens with large operation bandwidth using bilayer architecture

open access: yesOpto-Electronic Advances, 2021
Achromatic metalens composed of arrays of subwavelength nanostructures with spatially varying geometries is attractive for a number of optical applications. However, the limited degree of freedom in the single layer achromatic metasurface design makes it
Yilin Wang, Qingbin Fan, Ting Xu
exaly   +3 more sources

Dynamic phase assembled terahertz metalens for reversible conversion between linear polarization and arbitrary circular polarization

open access: yesOpto-Electronic Advances, 2022
If a metalens integrates the circular polarization (CP) conversion function, the focusing lens together with circular-polarizing lens (CPL) in traditional cameras may be replaced by a metalens.
Jitao Li, Guocui Wang, Zhen Yue
exaly   +3 more sources

Electrically Tunable Bifocal Metalens with Diffraction‐Limited Focusing and Imaging at Visible Wavelengths

open access: yesAdvanced Science, 2021
Tunable optical devices powered by metasurfaces provide a new path for functional planar optics. In particular, lenses with tunable focal lengths can play a key role in various fields with applications in imaging, displays, and augmented and virtual ...
Trevon Badloe, Inki Kim, Young-Ki Kim
exaly   +2 more sources

Inverse design of high‐NA metalens for maskless lithography

open access: yesNanophotonics, 2023
We demonstrate an axisymmetric inverse-designed metalens to improve the performance of zone-plate-array lithography (ZPAL), one of the maskless lithography approaches, that offer a new paradigm for nanoscale research and industry.
Haejun Chung, Owen D Miller
exaly   +2 more sources

Review for optical metalens based on metasurfaces: fabrication and applications [PDF]

open access: yesMicrosystems & Nanoengineering
Metalens is the next generation of optical metasurfaces for compact imaging, sensing, and display applications that allow the phase, polarization, frequency, amplitude, angular momentum, etc.
Zhikai Hu   +8 more
doaj   +2 more sources

A Reconfigurable Active Huygens' Metalens

open access: yesAdvanced Materials, 2017
Metasurfaces enable a new paradigm to control electromagnetic waves by manipulating subwavelength artificial structures within just a fraction of wavelength. Despite the rapid growth, simultaneously achieving low‐dimensionality, high transmission efficiency, real‐time continuous reconfigurability, and a wide variety of reprogrammable functions is still
Yijun Feng   +2 more
exaly   +5 more sources

Achromatic Metalens over 60 nm Bandwidth in the Visible and Metalens with Reverse Chromatic Dispersion [PDF]

open access: yesNano Letters, 2017
In this Letter, we experimentally report an achromatic metalens (AML) operating over a continuous bandwidth in the visible. This is accomplished via dispersion engineering of dielectric phase shifters: titanium dioxide nanopillars tiled on a dielectric spacer layer above a metallic mirror.
Mohammadreza Khorasaninejad   +2 more
exaly   +9 more sources

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