Results 191 to 200 of about 9,978 (259)

High‐Efficiency Generation of Vectorial Terahertz Beams via Surface‐Wave‐Excited Dielectric Metasurfaces

Small, EarlyView.
ABSTRACT Generating pre‐designed vectorial beams via on‐chip devices can yield many fascinating applications, but traditional diffraction‐based devices are bulky and inefficient. While plasmonic metasurfaces exhibit ultra‐compact sizes and deep‐subwavelength resolutions, their working efficiencies are limited by metallic losses.
Yu He, Yuanxi Liu, Yao Yao, Qingnan Cai, Dumeng Zhang, Xiangyu Jin, Shulin Sun, Zhuo Wang, Lei Zhou   +8 more
wiley   +1 more source

Quantitative Measurement and Analytical Modeling of Terahertz Wave Transmission in Natural Rock Materials Under Drying-Wetting Cycles. [PDF]

Materials (Basel)
Li Y, Yao Q, Liu K, Han M, Xu Q, Xia Z.
europepmc   +1 more source

Contactless Detection of Giant Helicity‐Dependent Photovoltage in Chiral 2D Perovskites

Small, EarlyView.
A novel contactless probe—circularly polarized time‐resolved surface photovoltage spectroscopy is demonstrated to evaluate helicity‐dependent charge separation dynamics without the need for electrical contacts. Application of this novel methodology to chiral 2D perovskites reveals giant transient surface photovoltage anisotropy.
Joanna Dehnel, Ido Zemer, Rawan Hirzalla, Ido Hadar, Igal Levine   +4 more
wiley   +1 more source

Light people: Professor Mengkun Liu. [PDF]

Light Sci Appl
Zheng W, Guo S.
europepmc   +1 more source

Thermo‐Kinetic Design of Magnesiothermic Reduction for Morphology‐Retaining Porous Si@C Anodes

Small, EarlyView.
Balancing Mg‐vapor supply and surface consumption during magnesiothermic reduction suppresses particle aggregation and preserves monodisperse morphology in porous Si@C spheres. The resulting architecture improves transport uniformity and reduces degradation within the electrode, leading to more stable high‐capacity cycling than aggregated counterparts ...
Chaeheon Woo, Yeongjin Kim, Xue Dong, Byung Joo Jeong, Xiaojie Zhang, Hyeon‐Seok Bang, Kyung In Kim, Minjae Kim, Donghyeon Lee, Junyoung Mun, Hak Ki Yu, Jae‐Young Choi   +11 more
wiley   +1 more source

Multichannel wavefront manipulation via wavelength-polarization multiplexed terahertz metadevice. [PDF]

iScience
Yue Z, Li J, Zheng C, Zhang Q, Chen M, Zhang Y, Dai Z, Song X, Zhang J, Xu Z, Ye Y, Yao J.   +11 more
europepmc   +1 more source

High‐performance electro‐optic materials featuring enhanced thermal stability through dual‐donor structural crosslinking engineering

Smart Molecules, EarlyView.
A groundbreaking dual‐donor crosslinking strategy was reported to significantly enhance the thermal stability, achieving remarkable EO coefficients (257–301 pm/V), glass transition temperatures (Tg) ranging from 107–187°C, and ultrahigh chromophore densities (3.73–4.26 × 10²⁰ molecules/cm³) with exceptional long‐term stability after 500 h at 85°C ...
Yu Zhang, Ziyun Zheng, Zhihan Huang, Zhifan Liu, Youling Chen, Fuyang Huo, Fenggang Liu, Xiubin Xu   +7 more
wiley   +1 more source

A Compact 380 GHz Zero-Bias Schottky Diode Detector for High-Sensitivity Radiometer Applications. [PDF]

Micromachines (Basel)
Tang H, Deng Y, Zhang D.
europepmc   +1 more source

Scalable Room‐Temperature Terahertz Graphene Cameras

Small Methods, EarlyView.
ABSTRACT Terahertz (THz) imaging has emerged as a powerful tool for non‐destructive, label‐free analysis across several scientific disciplines, ranging from materials science to biomedical research. By capturing the spatial‐dependent information in a broad range of frequencies, this technique enables the identification of chemical composition ...
Lili Shi, Leonardo Viti, Miriam S. Vitiello   +2 more
wiley   +1 more source

All-LCP Terahertz Metasensor with Dual Quasi-BIC Resonances for Dual-Range Refractive Index Sensing. [PDF]

Biosensors (Basel)
Zhang Y, Pan M, Hong Q, Shen S, Guo C, Li Y, Shi Y, Zhang Y.   +7 more
europepmc   +1 more source