Results 161 to 170 of about 156,538 (310)

A novel phased-array thermography concept for non-destructive testing. [PDF]

Sci Rep
Martinelli C, Meo M.
europepmc   +1 more source

Electrically Tunable On‐Chip Topological Photonics with Integrated Carbon Nanotubes

Advanced Functional Materials, EarlyView.
This work demonstrates electrically tunable on‐chip topological THz devices by integrating 2D carbon nanotube (CNT) sheets with valley‐Hall photonic crystals, enabling broadband transmission modulation (71% modulation depth) and tunable narrowband filtering (0.54 GHz shift) through electrically induced thermal tuning. This advancement paves the way for
Jifan Yin, Wenhao Wang, Thomas Caiwei Tan, Abhishek Kumar, Ridong Jia, Nikhil Navaratna, Ranjan Singh, Lijuan Xie   +7 more
wiley   +1 more source

Large phase-shifting channel spacing phased array antenna with triangular grid

Tongxin xuebao
Phased arrays with large channel spacing could reduce costs and improve compatibility, but they significantly limit scanning performance. A phased array antenna with a channel spacing of λ0 was designed.
PAN Yangyi, HUANG Zhicheng, LIAO Shaowei
doaj  

All-optically controlled phased-array for ultrasonics. [PDF]

Nat Commun
Goyal R, Demeulenaere O, Fournelle M, Athanassiadis AG, Fischer P.   +4 more
europepmc   +1 more source

Multiband Switchable Microwave Absorbing Metamaterials Based on Reconfigurable Kirigami–Origami

Advanced Functional Materials, EarlyView.
A reconfigurable metamaterial featuring tunable microwave‐absorbing and load‐bearing performance is proposed. Stretchable kirigami and bistable origami configurations are integrated as actuating components, and the synergistic deformation mechanisms are systematically analyzed.
Weimin Ding, Zhong Zhang, Zeang Zhao, Shengyu Duan, Panding Wang, Xiaogang Guo, Hongshuai Lei, Daining Fang   +7 more
wiley   +1 more source

Practical Method for Evaluating the Element Sensitivity Variation of an Ultrasonic Annular Phased Array Transducer. [PDF]

Sensors (Basel)
Sha Z, Liu X, Liu Y, Wang X, Zhou X.
europepmc   +1 more source

Near‐Infrared Organic Photovoltaic Electrodes for Subretinal Neurostimulation

Advanced Functional Materials, EarlyView.
Organic photovoltaic electrodes based on the D18:Y6 blend enable precise and light‐controlled activation of retinal ganglion cells in a degenerating retina. NIR Light‐driven activation of retinal ganglion cells, tunable stimulation parameters, and biocompatibility with human retinal organoids highlight their potential for next‐generation prosthetics ...
Andrea Corna, Katarina Gugujonovic, Manuela Schiek, Alessandro Bellapianta, Paul Werginz, Amelie Ziller, Markus Clark Scharber, Ahmad Salti, Matthias Bolz, Mihai Irimia‐Vladu, Günther Zeck   +10 more
wiley   +1 more source

Phased Array Ultrasonic Testing of W/EUROFER Functionally Graded Coating. [PDF]

Materials (Basel)
Mishra AK, Aktaa J.
europepmc   +1 more source

Photonic Engineering Enables All‐Passive Upconversion Imaging with Low‐Intensity Near‐Infrared Light

Advanced Functional Materials, EarlyView.
A passive upconversion imaging system enables the observation of scenes illuminated by low‐intensity incoherent near‐infrared light from 750 to 930 nm, by converting it into the visible without the use of external power. The upconverter is enabled by triplet–triplet annihilation in a bulk heterojunction, with absorption enhanced by plasmonic resonators
Rabeeya Hamid, Demeng Feng, Pournima Narayanan, Justin S. Edwards, Manchen Hu, Emma Belliveau, Minjeong Kim, Shenwei Yin, Sanket Deshpande, Chenghao Wan, Linda Pucurimay, David A. Czaplewski, Daniel N. Congreve, Mikhail A. Kats   +13 more
wiley   +1 more source

An on-chip phased array for non-classical light. [PDF]

Nat Commun
Gurses V, Davis SI, Valivarthi R, Sinclair N, Spiropulu M, Hajimiri A.   +5 more
europepmc   +1 more source