Results 61 to 70 of about 66,629 (316)

Reprogrammable Phononic Metasurfaces

Advanced Materials, 2017
AbstractPhononic metamaterials rely on the presence of resonances in a structured medium to control the propagation of elastic waves. Their response depends on the geometry of their fundamental building blocks. A major challenge in metamaterials design is the realization of basic building blocks that can be tuned dynamically. Here, a metamaterial plate
Osama R. Bilal, André Foehr, Chiara Daraio   +2 more
openaire   +3 more sources

Metasurface-Based Polarimeters [PDF]

Applied Sciences, 2018
The state of polarization (SOP) is an inherent property of light that can be used to gain crucial information about the composition and structure of materials interrogated with light. However, the SOP is difficult to experimentally determine since it involves phase information between orthogonal polarization states, and is uncorrelated with the light ...
Fei Ding, Yiting Chen, and Sergey I. Bozhevolnyi   +2 more
openaire   +4 more sources

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

Advanced Functional Materials, EarlyView.
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

Transparent and Ultra-Thin Flexible Checkerboard Metasurface for Radar–Infrared Bi-Stealth

Sensors
This paper proposed a single-layer checkerboard metasurface with simultaneous wideband radar cross-section (RCS) reduction characteristics and low infrared (IR) emissivity.
Qi Chang, Jinzu Ji, Ke Chen, Wenxing Wu, Yunpeng Ma   +4 more
doaj   +1 more source

Optically-Controlled Terahertz Multifunctional Polarization Conversion Metasurface with Reflection and Transmission Modes

Micromachines, 2022
In the terahertz band, how integrating multiple functions into a device with a tiny unit structure is a challenge. In this paper, an optically-controlled multifunctional linear polarization conversion metasurface working in the terahertz band is proposed.
Ying Tian, Lichang Han, Li Yan, Jiayun Wang, Binzhen Zhang, Zan Jiao   +5 more
doaj   +1 more source

Metasurface-stabilized optical microcavities

Nature Communications, 2023
AbstractCavities concentrate light and enhance its interaction with matter. Confining to microscopic volumes is necessary for many applications but space constraints in such cavities limit the design freedom. Here we demonstrate stable optical microcavities by counteracting the phase evolution of the cavity modes using an amorphous Silicon metasurface ...
Marcus Ossiander, Maryna Leonidivna Meretska, Sarah Rourke, Christina Spägele, Xinghui Yin, Ileana-Cristina Benea-Chelmus, Federico Capasso   +6 more
openaire   +6 more sources

Integrated Metallo‐Dielectric 3D Hotspots From High Refractive Index Nanodiamond‐Plasmonic Gold Cryosoret Nano‐Assemblies for Photonic Crystal Enhanced Fluorescence

Advanced Functional Materials, EarlyView.
This work presents a novel sensing platform using metallo‐dielectric cryosoret nano‐assemblies and lossless photonic crystals to overcome limitations of conventional plasmonic biosensors. The hybrid system enhances both electric and magnetic field interactions, enabling amplified fluorescence, ultralow detection limits, and prism‐free, objective‐free ...
Seemesh Bhaskar, Weinan Liu, Skye Shepherd, Devinda Wijewardena, Joseph Tibbs, Brian T. Cunningham   +5 more
wiley   +1 more source

Metasurface Freeform Nanophotonics [PDF]

Scientific Reports, 2017
AbstractFreeform optics aims to expand the toolkit of optical elements by allowing for more complex phase geometries beyond rotational symmetry. Complex, asymmetric curvatures are employed to enhance the performance of optical components while minimizing their size.
Alan Zhan, Shane Colburn, Christopher M. Dodson, Arka Majumdar   +3 more
openaire   +4 more sources

A Four-leaf Clover-shaped Coding Metasurface For Ultra-wideband Diffusion-like Scattering

Leida xuebao, 2021
In this paper, a novel four-leaf clover-shaped coding metasurface is proposed and applied to achieve an ultra-wideband diffusion-like scattering.
Saifullah YASIR, Guomin YANG, Feng XU
doaj   +1 more source

Plasmonic metagratings for simultaneous determination of Stokes parameters

, 2016
Measuring light's state of polarization is an inherently difficult problem, since the phase information between orthogonal polarization states is typically lost in the detection process.
Bozhevolnyi, Sergey I., Nielsen, Michael G., Pors, Anders   +2 more
core   +2 more sources