Results 41 to 50 of about 11,020 (243)

Miniature optical planar camera based on a wide-angle metasurface doublet corrected for monochromatic aberrations

, 2016
Optical metasurfaces are two-dimensional arrays of nano-scatterers that modify optical wavefronts at subwavelength spatial resolution. They are poised to revolutionize optics by enabling complex low-cost systems where multiple metasurfaces are ...
Arbabi, Amir, Arbabi, Ehsan, Faraon, Andrei, Han, Seunghoon, Horie, Yu, Kamali, Seyedeh Mahsa   +5 more
core   +1 more source

Experimental observation of superscattering [PDF]

, 2018
Superscattering, induced by degenerate resonances, breaks the fundamental single-channel limit of scattering cross section of subwavelength structures; in principle, an arbitrarily large total cross section can be achieved via superscattering.
Chen, Hongsheng, Kaminer, Ido, Li, Erping, Lin, Xiao, Qian, Chao, Wang, Huaping, Xiong, Xiaoyan, Yang, Yi, Zhang, Baile   +8 more
core   +2 more sources

High-Temperature Refractory Metasurfaces for Solar Thermophotovoltaic Energy Harvesting

, 2018
Solar energy promises a viable solution to meet the ever-increasing power demand by providing a clean, renewable energy alternative to fossil fuels.
Azad, Abul K., Chang, Chun-Chieh, Chen, Hou-Tong, Dalvit, Diego A. R., Kort-Kamp, Wilton J. M., Luk, Ting S., Nogan, John, Sykora, Milan, Taylor, Antoinette J.   +8 more
core   +2 more sources

Mechanically reconfigurable metasurfaces: fabrications and applications

npj Nanophotonics
Abstract Optical metasurfaces that control the light wavefront play an important role in various applications, from imaging to spectroscopy. Over the past decade, metasurfaces-based dynamic optical manipulation has been broadly investigated on diverse reconfigurable mechanisms, providing a footing ground for light control in both ...
Yinghao Zhao, Zhiguang Liu, Chongrui Li, Wenlong Jiao, Senlin Jiang, Xiaowei Li, Jiahua Duan, Jiafang Li   +7 more
openaire   +1 more source

Rapid large-scale fabrication of multipart unit cell metasurfaces

Optics Express, 2020
Periodic diffractive elements known as metasurfaces constitute platform technology whereby exceptional optical properties, not attainable by conventional means, are attained. Generally, with increasing unit-cell complexity, there emerges a wider design space and bolstered functional capability.
Hafez, Hemmati, Pawarat, Bootpakdeetam, Kyu Jin, Lee, Robert, Magnusson   +3 more
openaire   +2 more sources

Engineered substrates for metasurface antennas

Additive Manufacturing Letters
This letter explores the advantages of additively manufactured substrates with spatially varying electromagnetic properties. These engineered substrates will be constructed using space filling curves (SFC) of various orders.
Kelvin J. Nicholson, Ellen Gupta, Colin Bonner, Theodore Fessaras, Mark Mirotznik   +4 more
doaj   +1 more source

Reflective Terahertz Metasurfaces Based on Non-Volatile Phase Change Material for Switchable Manipulation

Photonics, 2022
Recently, metasurfaces have been investigated and exploited for various applications in the THz regime, including modulators and detectors. However, the responsive properties of the metasurface in THz stay fixed once the fabrication process is complete ...
Natsima Sakda, Ratchapak Chitaree, B. M. Azizur Rahman   +2 more
doaj   +1 more source

Electromechanically Tunable Metasurface Transmission Waveplate at Terahertz Frequencies

, 2017
Dynamic polarization control of light is essential for numerous applications ranging from enhanced imaging to materials characterization and identification.
Averitt, Richard D., Duan, Guangwu, Schalch, Jacob, Seren, Huseyin R., Zhang, Jingdi, Zhang, Xin, Zhao, Xiaoguang   +6 more
core   +1 more source

Circular‐Polarization‐Sensitive Organic Photodetectors with a Chiral Nanopatterned Electrode Inverse‐Designed by Genetic Algorithm

Advanced Functional Materials, EarlyView.
A chiral photodetector capable of selectively distinguishing left‐ and right‐handed circularly polarized light is experimentally demonstrated. The device, which features a nanopatterned electrode inverse‐designed by a genetic algorithm within a metal–dielectric–metal nanocavity that incorporates a vacuum‐deposited small‐molecule multilayer, exhibits ...
Kyung Ryoul Park, Jewoong Lee, In‐Suk Choi, Changsoon Kim   +3 more
wiley   +1 more source

3D Femtosecond Laser Beam Deflection for High‐Precision Fabrication and Modulation of Individual Voxelated PCM Meta‐Atoms

Advanced Science
Optical metasurfaces have found widespread applications in the field of optoelectronic devices. However, achieving dynamic and flexible control over metasurface functionalities, while also developing simplified fabrication methods for metasurfaces ...
Weina Han, Donghui Wei, Biye Peng, Jianhui Jiang, Jintao Tong, Zhehao Xu, Xueyan Zou, Jie Hu, Qian Cheng, Lan Jiang   +9 more
doaj   +1 more source