Results 231 to 240 of about 70,205 (364)

Achromatic 3D Multi‐Color Orbital Angular Momentum Holography

Advanced Science, EarlyView.
This work presents an achromatic 3D multicolor orbital angular momentum (OAM) holography based on spatial multiplexing. By integrating wavelength‐specific lens functions onto monochromatic Fourier OAM‐dependent holograms and high‐resolution spatial discretization and interleaving via two‐photon lithography (TPL), the approach addresses axial chromatic ...
Hang Su, Baoli Li, Yike Bai, Yiqi Ye, Yibo Dong, Xinyuan Fang   +5 more
wiley   +1 more source

Huygens metasurface supporting quasi-bound states in the continuum for terahertz gas sensing. [PDF]

Sci Rep
Álvarez-Sanchis JA, Vidal B, Díaz-Rubio A.   +2 more
europepmc   +1 more source

Multi‐Dimensional Multiplexed Metasurface for Multifunctional Near‐Field Modulation by Physics‐Driven Intelligent Design

Advanced Science, EarlyView.
The expansive design space of advanced metasurfaces, particularly those with multiple degrees of freedom (MDOF), renders traditional design methods less effective. A physics‐driven intelligent design is proposed for MDOF metasurfaces, which integrates physical knowledge into neural networks, enhancing interpretability and computational efficiency. This
Jian Lin Su, Zi Xuan Cai, Yiqian Mao, Long Chen, Xin Yi Yu, Zhi Cai Yu, Qian Ma, Si Qi Huang, Jianan Zhang, Jian Wei You, Tie Jun Cui   +10 more
wiley   +1 more source

A fast multi‐structural tracking method for characteristic modes with the ability to identify and amend errors

IET Microwaves, Antennas &Propagation, Volume 17, Issue 1, Page 62-74, January 2023., 2023
The idea of utilizing a multi‐structural algorithm is realized in this paper. The proposed modal tracking algorithm can track characteristic modes correctly and fast. This algorithm has mechanisms to identify and amend errors. In addition, the number of MOM computations is reduced by using a new frequency adjustment method. Abstract Characteristic mode
Mona Yazdani‐Shavakand, Javad Ahmadi‐Shokouh, Hamideh Dashti   +2 more
wiley   +1 more source

Improved Fetal Magnetic Resonance Imaging Using a Flexible Metasurface. [PDF]

NMR Biomed
Koloskov V, Puchnin V, Koreshin E, Kalugina A, Brink W, Kozlova P, Mashchenko I, Shchelokova A.   +7 more
europepmc   +1 more source

Experimental evidence of giant pure optical activity in a metasurface based on a complementary twisted cross configuration

, 2014
Ana Díaz‐Rubio, Ben Tremain, J. Carbonell, José Sánchez‐Dehesa, Alastair P. Hibbins   +4 more
openalex   +2 more sources

Generation and detection of orbital angular momentum via metasurface [PDF]

, 2016
Jinjin Jin, Jun Luo, Xiaohu Zhang, Hui Gao, Xiong Li, Mingbo Pu, Ping Gao, Zeyu Zhao, Xiangang Luo   +8 more
openalex   +1 more source

Transfer Learning Empowered Multiple‐Indicator Optimization Design for Terahertz Quasi‐Bound State in the Continuum Biosensors

Advanced Science, EarlyView.
This study proposes a pioneering method leveraging transfer learning to optimize multiple indicators in meta‐biosensor design, achieving the multiple‐indicator comprehensive optimization. By adopting frequency shift as a unified criterion, this study quantifies the contribution ratio of each performance indicator to the biosensor, which facilitates ...
Shengfeng Wang, Bingwei Liu, Xu Wu, Zuanming Jin, Yiming Zhu, Linjie Zhang, Yan Peng   +6 more
wiley   +1 more source

High‐gain ultra‐wideband quasi‐conical beam Fabry‐Perot antenna based on beam switching

IET Microwaves, Antennas &Propagation, Volume 17, Issue 1, Page 75-82, January 2023., 2023
To solve the contradiction between the high gain and wide coverage, the concept of the quasi‐conical beam is proposed by using the high‐gain pencil beam electrically switching along a cone to make full use of time redundancy. In a periphery‐fed Fabry‐Perot (FP)‐type multi‐beam antenna, the electrically switching is used to activate the different port ...
Junxiang Yang, Shi‐Shan Qi, Wen Wu, Da‐Gang Fang   +3 more
wiley   +1 more source

Wearable Image‐Based Colorimetric Sensor for Real‐Time Gas Detection with High Chromaticity

Advanced Electronic Materials, EarlyView.
Flexible colorimetric gas sensing offers energy‐free operation, intuitive feedback, and stability against environmental changes. This study presents a resonator‐based sensor integrated with polyvinyl alcohol (PVA) on a flexible substrate, achieving nearly full RGB coverage and angular robustness up to 60°.
Ji‐Eun Yeo, Joo Hwan Ko, Seung Hyeon Lee, Young Min Song   +3 more
wiley   +1 more source