Results 111 to 120 of about 66,629 (316)

Recent Progress and Comment on Metasurface Devices Based on Two-photon Three-dimensional Printing

Guangtongxin yanjiu, 2023
Metasurface has attracted great interest during the past ten years for its ultra-thin thickness, ultrashort modulation distance and manipulation of light with ultrahigh resolution, and it is easier to manufacture and integrate into devices with operating
Wu Mian, Wu Lin, Tao Jin
doaj  

High-efficiency transmissive metasurface for dual-polarized dual-mode OAM generation

Results in Physics, 2020
In this paper, a high-efficiency dual-polarized transmissive metasurface is presented for the generation of dual-mode convergent orbital angular momentum (OAM) beams.
Xudong Bai
doaj   +1 more source

Analytical Method for Metasurface-Based Cloaking Under Arbitrary Oblique Illumination [PDF]

, 2023
Yi Zhang, Haiyan Fan, Yujie Zhang, Ran Lixin, Dexin Ye, Xudong Chen   +5 more
openalex   +1 more source

Metasurface-enhanced transparency

Journal of the Optical Society of America B, 2017
We consider the problem of light transmission from a high refractive index medium into a low index environment. While total internal reflection severely limits such transmission in systems with smooth interfaces, diffractive metasurfaces may help out-couple light that enters an interface at blazing angles.
Christopher M. Roberts, Timothy A. Cook, Viktor A. Podolskiy   +2 more
openaire   +2 more sources

Scalable Thermal Engineering via Femtosecond Laser‐Direct‐Written Phononic Nanostructures

Advanced Functional Materials, EarlyView.
This study demonstrates that femtosecond laser‐induced periodic surface structures (fs‐LIPSS) can function as phononic metasurfaces, reducing thermal conductivity below the plain thin‐film limit. Phonon Monte Carlo analysis reveals that the periodic structures restrict phonon mean free paths.
Hiroki Hamma, Roman Anufriev, Kazuyoshi Fushinobu, Masahiro Nomura, Byunggi Kim   +4 more
wiley   +1 more source

Reconfigurable metasurface design via coplanar self-biasing structure

Results in Physics
Reconfigurable metasurface enriches the functional integrated design into the originally limited space. Electrical control, through the external power supply to control the electromagnetic response control, is a common and simple control method. However,
Bingyue Qu, Ruichao Zhu, Yongqiang Pang, Sai Sui, Yuxiang Jia, Yuxi Li, Shaojie Wang, Shaobo Qu, Zhuo Xu, Jiafu Wang   +9 more
doaj   +1 more source

Switchable Thermal Mid‐IR Conducting Polymer Antenna Arrays

Advanced Functional Materials, EarlyView.
This study presents switchable mid‐infrared plasmonic resonances in PEDOT antenna arrays. Their optical extinction peaks can be reversibly switched ‘OFF’ and ‘ON’ by tuning the polaronic charge carrier concentration via the polymer's redox state, offering modulation of optical responses in the thermal mid‐infrared range including around 10 µm ...
Pravallika Bandaru, Mohammad Shaad Ansari, Suraya Kazi, Dongqing Lin, Alexander Yu Polyakov, Magnus P. Jonsson   +5 more
wiley   +1 more source

Terahertz tunable vanadium dioxide metasurface for dynamic illusion and cloaking

iScience
Summary: Realizing camouflage by illusion and cloaking based on the metasurface has received widespread attention recently. However, existing metasurface-based illusion and cloaking devices are valid for the incident wave with a specific frequency, angle,
Ling Wang, Feng Gao, Shuhua Teng, Zhiguo Tan, Xing Zhang, Jun Lou   +5 more
doaj   +1 more source

Beyond Conventional Cooling: Advanced Micro/Nanostructures for Managing Extreme Heat Flux

Advanced Materials, EarlyView.
This review examines the design, application, and manufacturing of biomimetic or engineered micro/nanostructures for managing high heat‐flux in multi‐level electronics by enhancing conductive, convective, phase‐changing, and radiative heat transfer mechanisms, highlighting their potential for efficient, targeted thermal management, and future prospects.
Yuankun Zhang, Huajie Li, Yuhang Zhou, Jun Ma, Keng‐Te Lin, Han Lin, Chunsheng Guo, Baohua Jia   +7 more
wiley   +1 more source

Spatially‐Controlled Planar Guided Crystallization of Low‐Loss Phase Change Materials for Programmable Photonics

Advanced Materials, EarlyView.
The concept of spatially‐controlled planar guided crystallization is a novel method for programming the growth of optically homogeneous low‐loss Sb2S3 phase‐change material (PCM), leveraging the directional crystallization within confined channels.
Fouad Bentata, Arnaud Taute, Capucine Laprais, Régis Orobtchouk, Eva Kempf, Alban Gassenq, Yves Pipon, Michele Calvo, Valérie Martinez, Stéphane Monfray, Guillaume Saint‐Girons, Nicolas Baboux, Hai Son Nguyen, Xavier Letartre, Lotfi Berguiga, Patrice Genevet, Sébastien Cueff   +16 more
wiley   +1 more source