Results 121 to 130 of about 6,138 (262)

Space‐Time Metasurface Antenna Enabled High‐Dimensional Electromagnetic Modulation for Intrinsic Physical Layer Security

Advanced Science, EarlyView.
The concept of high‐dimensional EM modulation using the STMA for physical layer secure communication is illustrated in figure. The STMA consists of a series of programmable unit cells, with 1‐bit reconfigurable phase states (0/π). The STMA is excited by a monochromatic continuous wave (CW) at frequency fc and controlled by a field‐programmable gate ...
Xinyu Fang, Yiqing Sun, Chenfeng Yang, Siran Wang, Zheng Xing Wang, Kaixu Wang, Geng‐Bo Wu   +6 more
wiley   +1 more source

A low-profile high-isolation dual-polarized base station antenna based on AMC. [PDF]

Sci Rep
Zhang L, Wang Y, Dang W, Jiang X, Yang H.   +4 more
europepmc   +1 more source

Efficient Polarization‐Entangled Photon‐Pair Generation by a Fiber‐In‐Line van der Waals Material

Advanced Science, EarlyView.
Telecom‐wavelength polarization‐entangled photon pairs are generated in a van der Waals‐material‐integrated all‐fiber device via spontaneous parametric down‐conversion. The demonstrated fiberized quantum light source bridges emerging 2D nonlinear materials and practical quantum photonic systems, opening new opportunities for scalable fiber‐based ...
Jungseok Choi, Seongju Ha, Seungjae Lim, Joohyeon Ahn, Jaekyoung Kim, Jong Hyuk Yim, Nam Hun Park, Youngdong Yoo, Jae‐Ung Lee, Hee Su Park, Sang Min Lee, Dong‐Il Yeom   +11 more
wiley   +1 more source

Broadband multi-beam lens-assisted mmID enabling multi-gigabit backscatter data rates for next-generation wireless networks. [PDF]

Nat Commun
Joshi M, Lynch Iii CA, Hu K, Mensah YA, Cressler JD, Tentzeris MM.   +5 more
europepmc   +1 more source

Cicada Wing‐Inspired Skeleton‐GO Networks in Melamine Foams for Multifunctional High‐Performance Composites

Advanced Science, EarlyView.
Inspired by the intricate microstructure of cicada wings, researchers developed a novel in situ skeleton‐graphene membrane architecture within lightweight foams. This bioinspired design dramatically enhances multifunctional performance: vibration attenuation time decreases by ∼83.3%, damping capacity increases by ∼179.3%, and compressive modulus rises ...
Jigang Feng, Anhao Li, Babak Safaei, Yun Kong, Yizhen Miao, Zhaoye Qin, Fulei Chu   +6 more
wiley   +1 more source

Assessing the Frequency-Dependent Conductivity of Conductive Yarns. [PDF]

Sensors (Basel)
Dontha B, Kiourti A.
europepmc   +1 more source

Terahertz‐Nanoscale Visualization of the Microscopic Spin‐Charge Architecture of Colossal Magnetoresistive Switching

Advanced Science, EarlyView.
This study employs cryogenic magneto‐terahertz nanoscopy to reveal the real‐space electrodynamics of the colossal magnetoresistance transition. By capturing the terahertz electrodynamic evolution of field‐driven spin switching, the work unveils the dissipative dynamics of emergent metallic states, providing a high‐frequency view of coupled spin‐charge ...
Samuel Haeuser, Randall K. Chan, Richard H. J. Kim, Joong‐Mok Park, Martin Mootz, Thomas Koschny, Jigang Wang   +6 more
wiley   +1 more source

Low-profile metasurface-backed wideband antenna array for mm-wave applications. [PDF]

Sci Rep
Kiani SH, Rafique U, Shoaib N, Abbasi MI, Elmannai H, Ibrahim MI, Dalarsson M.   +6 more
europepmc   +1 more source

Engineering Slow‐Carrier Interfacial Recombination Enables Tailored Spectral Response

Advanced Science, EarlyView.
This work demonstrates that weak‐drift slow carriers are preferentially captured at generic semiconductor surfaces/interfaces and recombine. This process is manipulated to achieve tailored spectral response. A tens of µm‐wide depletion region is created to observe surface collection rates for photocarriers generated at different positions.
Yibo Zhang, Haozhe Wang, Zeke Liu, Yun Zhong, Zheng‐Hong Lu, Nazir P. Kherani   +5 more
wiley   +1 more source

Ka-band broadband high-gain circularly polarized antenna array with high cross-polarization discrimination. [PDF]

Sci Rep
Li C, Zhu Y, Zhou Y, Xu Y, Xie W.
europepmc   +1 more source