Results 41 to 50 of about 27,230 (299)
Moiré Hyperbolic Metasurfaces [PDF]
Nano Letters, 2020 17 pages, 4 ...
Guangwei Hu +4 more
openaire +3 more sources
Metasurface-Controlled Photonic Rashba Effect for Upconversion Photoluminescence
, 2023 We demonstrate the effect of spin-momentum locking of upconversion photoluminescence emitted from rare-earth doped nanocrystals coupled to a phase-gradient dielectric metasurface.
Yuri Kivshar (1640680) +8 more
core +1 more source
Frequency coding metasurface for multiple directions manipulation of terahertz energy radiation
AIP Advances, 2019 A multifunctional frequency coding metasurface is proposed in terahertz frequency band. Different from the previous coding metasurface with a fixed phase difference of the neighbor coding unit cells in the whole working frequency band, the proposed ...
Shao-He Li, Jiu-Sheng Li
doaj +1 more source
Coherent retroreflective metasurfaces [PDF]
Physical Review Research, 2021 Inhomogeneous metasurfaces have shown possibilities for unprecedented control of wave propagation and scattering. While it is conventional to shine a single incident plane wave from one side of these metastructures, illuminating by several waves simultaneously from both sides may enhance possibilities to control scattered waves, which results in ...
Cuesta, F. S. +4 more
openaire +4 more sources
Metasurface-based Mueller Matrix Microscope
, 2023 In conventional optical microscopes, image contrast of objects mainly results from the differences in light intensity and/or color. Muller matrix optical microscopes (MMMs), on the other hand, can provide significantly enhanced image contrast and rich ...
Hossain Mansur Resalat Faruque (17327374) +9 more
core +1 more source
Control of vibration-metasurface coupling at mid-infrared spectral window for inorganic thermal emitters [PDF]
, 2022 Coupling between light and molecular vibrational modes is dependent on efficiency of molecular absorption. Here we demonstrate how to control coupling between molecular mid-infrared absorption/emission at chemical fingerprinting spectral window and ...
Yoshiaki, Nishijima, Saulius, Juodkazis
core +1 more source
Review of terahertz gradient metasurface
Dianzi Jishu Yingyong, 2019 Metasurface, a novel artificial electromagnetic material, its thickness is much smaller than the wavelength. By regulating the interaction between the sub-wavelength unit structure and the electromagnetic wave, the wave will undergo a phase or amplitude ...
Kou Wei +3 more
doaj +1 more source
Sensors, 2022 Proof of concept of a new real-time metasurface sensor for micropoison monitoring in aqueous solutions is proposed in this study. The sensor comprises a perfect absorber metasurface and gold nanoparticle layer on the front side of it.
Amir Abramovich +2 more
doaj +1 more source
Hierarchical Physical-Cyber Encryption via Metasurface-Encoded Holographic Keys. [PDF]
Adv Sci (Weinh)ABSTRACT Physical‐layer encryption based on metasurfaces has emerged as a promising alternative to conventional algorithmic cryptography by embedding security into physical processes. However, most existing metasurface‐based encryption schemes operate within single‐stage or static frameworks, where correct physical illumination directly reveals the ...
Liu Z +8 more
europepmc +2 more sources
A true metasurface antenna [PDF]
2016 IEEE International Symposium on Antennas and Propagation (APSURSI), 2016 AbstractWe present a true metasurface antenna based on electrically-small resonators. The resonators are placed on a flat surface and connected to one feed point using corporate feed. Unlike conventional array antennas where the distance between adjacent antennas is half wavelength to reduce mutual coupling between adjacent antennas, here the distance ...
Mohamed El Badawe +2 more
openaire +2 more sources