Results 21 to 30 of about 1,369 (178)

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, Kelei Xi, Songlin Zhuang, Qingqing Cheng   +3 more
doaj   +1 more source

Sharp focus of a circularly polarized optical vortex at the output of a metalens illuminated by linearly polarized light [PDF]

Компьютерная оптика, 2019
A three-level spiral metalens in an amorphous silicon film is designed. The metalens relief consists of two subwavelength gratings with a 220-nm period (for 633 nm wavelength) and depths of 90 and 170 nm. The metalens forms a left-hand circular polarized
Anton Nalimov, Victor Kotlyar
doaj   +1 more source

Soret Fishnet Metalens Antenna [PDF]

Scientific Reports, 2015
Abstract At the expense of frequency narrowing, binary amplitude-only diffractive optical elements emulate refractive lenses without the need of large profiles. Unfortunately, they also present larger Fresnel reflection loss than conventional lenses.
Orazbayev, B, Beruete, M, Pacheco-Peña, V, Crespo, G, Teniente, J, Navarro-Cía, M   +5 more
openaire   +5 more sources

Ultrathin Tunable Optomechanical Metalens

Nano Letters, 2023
ISSN:1530 ...
Adeel Afridi, Jan Gieseler, Nadine Meyer, Romain Quidant   +3 more
openaire   +5 more sources

Inverse design of high-NA metalens for maskless lithography

Nanophotonics, 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.
Chung Haejun, Zhang Feng, Li Hao, Miller Owen D., Smith Henry I.   +4 more
doaj   +1 more source

Bandpass Filter Integrated Metalens Based on Electromagnetically Induced Transparency

Nanomaterials, 2022
A bandpass filter integrated metalens based on electromagnetically induced transparency (EIT) for long-wavelength infrared (LWIR) imaging is designed in this paper.
Dongzhi Shan, Jinsong Gao, Nianxi Xu, Hai Liu, Naitao Song, Qiao Sun, Yi Zhao, Yang Tang, Yansong Wang, Xiaoguo Feng, Xin Chen   +10 more
doaj   +1 more source

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, Ping Yang, Shuai Wang, Jie Huang, Dingbo Chen, Zhaojian Zhang, Junbo Yang, Bing Xu   +7 more
doaj   +1 more source

Generation of Subdiffraction Optical Needles by Simultaneously Generating and Focusing Azimuthally Polarized Vortex Beams through Pancharatnam–Berry Metalenses

Nanomaterials, 2022
Needle beams have received widespread attention due to their unique characteristics of high intensity, small focal size, and extended depth of focus (DOF).
Zhe Shen, Shijie Huang
doaj   +1 more source

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

Opto-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, Jingyu Liu, Jie Li, Chenglong Zheng, Yating Zhang, Yan Zhang, Jianquan Yao   +8 more
doaj   +1 more source

Metalens and microtaper spectrometers on a fingertip

Light: Science & Applications, 2023
AbstractA multi-foci metalens and a leaky-mode microtaper provide innovative platforms to achieve high-resolution, wideband light spectra in millimeter-sized devices, thereby paving new ways for the commercialization of on-fingertip spectrometers.
Peixia Zheng, Xuan Zhang, Hong-Chao Liu
openaire   +3 more sources