Results 61 to 70 of about 1,369 (178)

High-efficiency SOI-based metalenses at telecommunication wavelengths

Nanophotonics, 2022
We demonstrated silicon-on-insulator (SOI)-based high-efficiency metalenses at telecommunication wavelengths that are integrable with a standard 220 nm-thick silicon photonic chip.
Ryu Taesu, Kim Moohyuk, Hwang Yongsop, Kim Myung-Ki, Yang Jin-Kyu   +4 more
doaj   +1 more source

Wärmeträgerflüssigkeiten als Co‐Diluenten in lokal hochkonzentrierten Elektrolyten für schnellladefähige Lithium‐Metall‐Batterien mit erhöhter Sicherheit

Angewandte Chemie, Volume 138, Issue 34, 17 August 2026.
Zwei fluorierte Ether aus dem Bereich der Wärmeträgerflüssigkeiten werden als Co‐Diluenten in lokal hochkonzentrierten Elektrolyten für lithiummetallbasierte Batterien eingesetzt. Die ternäre Diluentenmischung erhöht die Ionenmobilität, senkt die Überspannung und verbessert so coulombische Effizienz und Lebensdauer der Zelle bei hohen Stromdichten, was
Dominik Weintz, Adil Aboobacker, Andrew Dopilka, Felix Pfeiffer, Anne Hockmann, Uta Rodehorst, Christian Wölke, Monika Schönhoff, Robert Kostecki, Diddo Diddens, Martin Winter, Isidora Cekic‐Laskovic   +11 more
wiley   +1 more source

On-chip monolithic wide-angle field-of-view metalens based on quadratic phase profile

AIP Advances, 2020
With the rapid development of integrated optics, bulky and curved traditional lenses cannot meet the requirements of on-chip optical systems. Alternatively, the metalenses based on the artificial subwavelength structure possess ultra-thin and lightweight
Cong Chen, Panpan Chen, Jianxin Xi, Wanxia Huang, Kuanguo Li, Li Liang, Fenghua Shi, Jianping Shi   +7 more
doaj   +1 more source

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

Ultra Compact and Broadband Fiber Facet Graphene Oxide Microlens Array Fabricated on a Beam‐Expanding Fiber Facet Using Femtosecond Laser Direct Writing Technique

Nanophotonics, Volume 15, Issue 15, 13 August 2026.
A 400 nm graphene oxide film on a beam‐expanding fiber facet is patterned by femtosecond laser direct writing into a 19‐lens microlens array. The device simultaneously splits a single input beam into multiple 0.67–0.74 NA focus spots with a broadband response from 850 to 1550 nm.
Xiaoke Chen, Lin Ma, Linbin Bai, Tianqi Cheng, Zuyuan He   +4 more
wiley   +1 more source

A Metalens with a Near-Unity Numerical Aperture [PDF]

Nano Letters, 2018
The numerical aperture (NA) of a lens determines its ability to focus light and its resolving capability. Having a large NA is a very desirable quality for applications requiring small light-matter interaction volumes or large angular collections. Traditionally, a large NA lens based on light refraction requires precision bulk optics that ends up being
Ramón Paniagua-Domínguez, Ye Feng Yu, Egor Khaidarov, Sumin Choi, Victor Leong, Reuben M. Bakker, Xinan Liang, Yuan Hsing Fu, Vytautas Valuckas, Leonid A. Krivitsky, Arseniy I. Kuznetsov   +10 more
openaire   +3 more sources

End‐to‐End Deep Learning Framework for Freeform Metasurfaces via Non‐Uniform Rational B‐Splines Meta‐Atoms

Nanophotonics, Volume 15, Issue 15, 13 August 2026.
This work presents a NURBS‐enabled metasurface design framework that combines freeform meta‐atom parameterization with Transformer‐based deep learning. The unified mathematical representation expands geometric degrees of freedom while enabling efficient optical‐response prediction and inverse design.
Kaipeng Liu, Junliang Jia, Kun Li, Yuanjian Wan, Runlin Zhou, Xuyang Chen, Chao Wang, Zhixiang Huang, Jiaxin Li, Gang Gao, Pei Zhang, Longqiu Li   +11 more
wiley   +1 more source

Large‐Aperture, WFOV Broadband Achromatic Metalens Enabled by Forward Mapping Optimization and Hybrid Algorithmic Framework

Nanophotonics, Volume 15, Issue 15, 13 August 2026.
A novel large aperture metalens design strategy achieves broadband achromatic imaging across the visible spectrum (400–680 nm) with a 100° field of view. By incorporating forward mapping optimization and a hybrid algorithm framework, this approach overcomes the limit between aperture size, field of view, and chromatic aberration correction, providing a
Zongyuan Chen, Wangzhe Zhou, Shaoqi Li, Yiyi Li, Nan Gu, Man Yuan, Junbo Yang   +6 more
wiley   +1 more source

Broadband Electromagnetic Field Prediction at Unseen Wavelengths via Physics‐Guided Neural Operators

Nanophotonics, Volume 15, Issue 15, 13 August 2026.
A physics‐guided neural operator is trained on electromagnetic field distributions at discrete wavelengths across diverse nanophotonic structures. At inference, given any permittivity map and query wavelength, the model predicts continuous broadband electric‐field distributions with full‐wave accuracy, including wavelengths unseen during training ...
Joonhyuk Seo, Chanik Kang, Dongjin Seo, Haejun Chung   +3 more
wiley   +1 more source

Compact Snapshot Hyperspectral Imaging With Neural Dispersion‐Engineered Metalens

Nanophotonics, Volume 15, Issue 15, 13 August 2026.
A dispersion‐engineered metalens, designed via an end‐to‐end deep learning framework, encodes spectral information through wavelength‐dependent PSF shifts. Fabricated by two‐photon grayscale lithography, the ultrathin device demonstrates outstanding spatial‐spectral reconstruction in both indoor and outdoor scenes, positioning it as a promising ...
Peng Liu, Jiaru Chu, Yuhang Chen
wiley   +1 more source