Results 81 to 90 of about 4,317 (190)

Time-Varying Metasurfaces and Lorentz Non-Reciprocity

, 2015
A cornerstone equation of optics, Snell's law, relates the angles of incidence and refraction for light passing through an interface between two media.
Kildishev, Alexander, Shalaev, Vladimir, Shaltout, Amr   +2 more
core   +1 more source

Large‐Aperture Polarization‐Independent Broadband Achromatic All‐Dielectric Metalens for Terahertz Focusing

Advanced Science, Volume 13, Issue 25, 4 May 2026.
A large‐aperture, high focusing efficiency and polarization‐independent THz single‐layer achromatic metalens is reported via discrete multi‐wavelength achromatic design and global optimization algorithm. The fabricated metalens exhibits a largest diameter of 2.21 cm, excellent achromatic performance, extremely high average focusing efficiency (> 46 ...
Xiaoqiang Jiang, Xu Chen, Zechuan Bin, Fu Tang, Min Hu, Manman Li, Wenhui Fan, Baoli Yao   +7 more
wiley   +1 more source

Flat-field superoscillation metalens

Photonics Research, 2022
Superoscillation metalenses have demonstrated promising prospects in breaking the theoretical diffraction limitations on the resolution of optical devices and systems. However, most reported superoscillation metalenses have a very small field of view of several tenths of a degree, which greatly limits their applications in imaging and microscopy ...
Dingpeng Liao, Fengliang Dong, Kun Zhang, Yi Zhou, Gaofeng Liang, Zhihai Zhang, Zhongquan Wen, Zhengguo Shang, Gang Chen, Luru Dai, Weiguo Chu   +10 more
openaire   +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

Metasurfaces and Metadevices for Topological Electromagnetic Waves

Advanced Physics Research, Volume 5, Issue 5, May 2026.
Optical topologies refer to diverse topological localized structures made by diverse parameters of light fields, such as vortices, skyrmions, and hopfions. This article navigates a direction of metasurface‐based integrated devices for generation, manipulation and detection of novel topologies of light, which would be a rapidly growing interdisciplinary
Rensheng Xie, Nilo Mata‐Cervera, Xi Xie, Yijie Shen   +3 more
wiley   +1 more source

Realization of Zero-Refractive-Index Lens with Ultralow Spherical Aberration

, 2016
Optical complex materials offer unprecedented opportunity to engineer fundamental band dispersion which enables novel optoelectronic functionality and devices. Exploration of photonic Dirac cone at the center of momentum space has inspired an exceptional
Chang, Ming-Li, Deng, Shao-Zhi, Dong, Jian-Wen, He, Xin-Tao, Huang, Zhi-Zhen, She, Jun-Cong, Xu, Shao-Zeng, Zhao, Fu-Li   +7 more
core   +2 more sources

Metalens‐Enabled Twisted Chromatic Dispersion

Advanced Physics Research, Volume 5, Issue 5, May 2026.
We successfully demonstrate visible broadband twisted dispersion metalenses. As a proof of concept, we realized two distinct devices: the conical helical and the spring‐like dispersion‐controlled metalenses. These results rigorously validate the universality of our approach in customizing arbitrary continuous 3D dispersion trajectories, thereby ...
Shiyu Zheng, Boyan Fu, Hong Zhang, Shuming Wang   +3 more
wiley   +1 more source

Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching

Advanced Functional Materials, Volume 36, Issue 31, 16 April 2026.
A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey, Uwe Hübner, Albane Benardais, Xiaofei Wu, Andrea Dellith, Jan Dellith, Torsten Wieduwilt, Henrik Schneidewind, Markus A Schmidt, Virginie Nazabal, Volker Deckert, Jer‐Shing Huang, Wei Wang   +12 more
wiley   +1 more source

Three‐dimensional Antimony Sulfide Based Flat Optics

Advanced Functional Materials, Volume 36, Issue 32, 20 April 2026.
This work presents the development of a grayscale electron beam lithography (g‐EBL) method for fabricating antimony trisulfide (Sb2S3) nanostructures with customizable 3D profiles. The refractive index of g‐EBL patterned Sb2S3 is determined based on the synergy of genetic algorithm and transfer matrix method.
Wei Wang, Uwe Hübner, Anne Gärtner, Tao Chen, Joseph Köbel, Franka Jahn, Daniel Repp, Abhrodeep Dey, Henrik Schneidwind, Andrea Dellith, Jan Dellith, Torsten Wieduwilt, Matthias Zeisberger, Tanveer Ahmed Shaik, Astrid Bingel, Markus A. Schmidt, Jer‐Shing Huang, Ulf Peschel, Volker Deckert   +18 more
wiley   +1 more source

Thin high numerical aperture metalens

Optics Express, 2017
We designed, fabricated, and characterized a thin metalens in an amorphous silicon film of diameter 30 µm, focal length equal to the incident wavelength 633 nm. The lens is capable of simultaneously manipulating the state of polarization and phase of incident light.
Kotlyar, V. V., Nalimov, A. G., Stafeev, S. S., Hu, Changyu, O'Faolain, L., Kotlyar, M. V., Gibson, D., Song, S.   +7 more
openaire   +4 more sources