Results 81 to 90 of about 65,305 (312)

Imaging-based molecular barcoding with pixelated dielectric metasurfaces

Science, 2018
Metasurfaces for molecular detection Although mid-infrared (mid-IR) spectroscopy is a mainstay of molecular fingerprinting, its sensitivity is diminished somewhat when looking at small volumes of sample.
Andreas Tittl, A. Leitis, Mingkai Liu, F. Yesilkoy, D. Choi, D. Neshev, Y. Kivshar, H. Altug   +7 more
semanticscholar   +1 more source

Omnidirectional Transmissive Acoustic Metasurfaces Based on Goldberg Polyhedra

Advanced Functional Materials, EarlyView.
This study introduces omnidirectional acoustic metasurfaces capable of manipulating wavefronts in multiple arbitrary directions simultaneously. A full‐stack pipeline for design, optimization, and fabrication is presented to construct near‐spherical holograms based on Goldberg polyhedra.
Andrea Achilleos, James Hardwick, Ryuji Hirayama, Sriram Subramanian   +3 more
wiley   +1 more source

Tunable anisotropic van der Waals films of 2M-WS2 for plasmon canalization

Nature Communications
In-plane anisotropic van der Waals materials have emerged as a natural platform for anisotropic polaritons. Extreme anisotropic polaritons with in-situ broadband tunability are of great significance for on-chip photonics, yet their application remains ...
Qiaoxia Xing, Jiasheng Zhang, Yuqiang Fang, Chaoyu Song, Tuoyu Zhao, Yanlin Mou, Chong Wang, Junwei Ma, Yuangang Xie, Shenyang Huang, Lei Mu, Yuchen Lei, Wu Shi, Fuqiang Huang, Hugen Yan   +14 more
doaj   +1 more source

Optoelectronic Devices for In‐Sensor Computing

Advanced Materials, EarlyView.
The raw data obtained directly from sensors in the noisy analogue domain is often unstructured, which lacks a predefined format or organization and does not conform to a specific data model. Optoelectronic devices for in‐sensor visual processing can integrate perception, memory, and processing functions in the same physical units, which can compress ...
Qinqi Ren, Chaoyi Zhu, Sijie Ma, Zhaoqing Wang, Jianmin Yan, Tianqing Wan, Weicheng Yan, Yang Chai   +7 more
wiley   +1 more source

Sustainable Fabrication and Transfer of High‐Precision Nanoparticle Arrays Using Recyclable Chemical Pattern Templates

Advanced Science
Nanoparticle (NP) arrays, particularly those with plasmonic properties, have diverse applications in electronics, photonics, catalysis, and biosensing, but their precise and scalable fabrication remains challenging.
Huaining Zha, Wenjie Zhang, Peng Chen, Jing Tao, Li Qiu, Fan Yang, Shunsheng Ye, Yutao Sang, Zhihong Nie   +8 more
doaj   +1 more source

Multifunctional metasurfaces enabled by simultaneous and independent control of phase and amplitude for orthogonal polarization states

Light: Science & Applications, 2021
Monochromatic light can be characterized by its three fundamental properties: amplitude, phase, and polarization. In this work, we propose a versatile, transmission-mode all-dielectric metasurface platform that can independently manipulate the phase and ...
Mingze Liu, Wenqi Zhu, P. Huo, Lei Feng, Maowen Song, Cheng Zhang, Lu Chen, H. Lezec, Yan-qing Lu, A. Agrawal, Ting Xu   +10 more
semanticscholar   +1 more source

Pushing Radiative Cooling Technology to Real Applications

Advanced Materials, EarlyView.
Radiative cooling controls surface optical properties for solar and thermal radiation, offering solutions for global warming and energy savings. Despite significant advances, key challenges remain: optimizing optical efficiency, maintaining aesthetics, preventing overcooling, enhancing durability, and enabling scalable production.
Chongjia Lin, Keqiao Li, Meng Li, Benjamin Dopphoopha, Jiongzhi Zheng, Jiazheng Wang, Shanshan Du, Yang Li, Baoling Huang   +8 more
wiley   +1 more source

Electrically tunable metasurfaces: from direct to indirect mechanisms

New Journal of Physics, 2022
Intensive development of nanofabrication processes has opened a new window to control electromagnetic waves using subwavelength nanostructures array, named metasurfaces. Although the metasurfaces have succeeded in achieving unprecedented functionality by
Nara Jeon, Jaebum Noh, Chunghwan Jung, Junsuk Rho   +3 more
doaj   +1 more source

Modeling metasurfaces using discrete-space impulse response technique [PDF]

arXiv, 2020
Metasurfaces are arrays of subwavelength meta-atoms that shape waves in a compact and planar form factor. Analysis and design of metasurfaces require methods for modeling their interactions with waves. Conventional modeling techniques assume that metasurfaces are locally periodic structures excited by plane waves, restricting their applicability to ...
arxiv  

Van Der Waals Hybrid Integration of 2D Semimetals for Broadband Photodetection

Advanced Materials, EarlyView.
Advanced broadband photodetector technologies are essential for military and civilian applications. 2D semimetals, with their gapless band structures, high mobility, and topological protection, offer great promise for broadband PDs. This study reviews the latest advancements in broadband PDs utilizing heterostructures that combine 2D semimetals with ...
Xue Li, Kunxuan Liu, Di Wu, Pei Lin, Zhifeng Shi, Xinjian Li, Longhui Zeng, Yang Chai, Shu Ping Lau, Yuen Hong Tsang   +9 more
wiley   +1 more source