Results 261 to 270 of about 3,180,129 (338)

On‐Chip Active Non‐Reciprocal Topological Photonics

Advanced Materials, EarlyView.
An ultra‐compact and efficient on‐chip isolator is experimentally demonstrated by integrating magneto‐optical InSb onto a terahertz silicon topological chip. The simultaneous breaking of spatial and temporal reversal symmetries forms a valley‐conserved non‐reciprocal waveguide mode, enabling a compact cavity size of 6.4 × 2.5λ2 and a low insertion loss
Ridong Jia, Thomas Caiwei Tan, Sobhan Subhra Mishra, Wenhao Wang, Yi Ji Tan, Ranjan Singh   +5 more
wiley   +1 more source

Spin-orbital excitations encoding the magnetic phase transition in the van der Waals antiferromagnet FePS₃. [PDF]

NPJ Quantum Mater
Wei Y, Tseng Y, Elnaggar H, Zhang W, Asmara TC, Paris E, Domaine G, Strocov VN, Testa L, Favre V, Di Luca M, Banerjee M, Wildes AR, de Groot FMF, Rønnow HM, Schmitt T.   +15 more
europepmc   +1 more source

Designing Physical Unclonable Functions From Optically Active Materials

Advanced Materials, EarlyView.
Assigning unforgeable “fingerprints” to manufactured goods is a key strategy to fight global counterfeiting. Optical physical unclonable functions (PUFs) are chemically generated random patterns of optically active materials serving as unique authenticators.
Maxime Klausen, Junfang Zhang, Molly M. Stevens   +2 more
wiley   +1 more source

Suppression of Stacking Faults for Stable Formamidinium‐Rich Perovskite Absorbers

Advanced Materials, EarlyView.
The authors show that the (011)C perovskite planes are prone to stacking faults formation in all leading formamidinium‐rich perovskite compositions. Using ethylene thiourea as a precursor additive, Othman et al. suppress those vulnerable facets, significantly enhancing the absorber's intrinsic stability under various operational conditions.
Mostafa Othman, Lorenzo Agosta, Quentin Jeangros, Anaël Jaffrès, Sandra Jenatsch, Virginia Carnevali, Nikolaos Lempesis, Vladislav Slama, Julian A. Steele, Rui Zhang, Eduardo Solano, Guiseppe Portale, Victor Boureau, Adriana Paracchino, Aurélien Bornet, Huagui Lai, Fan Fu, Amit Kumar Sachan, Wolfgang Tress, Kerem Artuk, Mounir D. Mensi, Mohammad Reza Golobostanfard, Austin G. Kuba, Stefan Zeiske, Ardalan Armin, Nicolas Blondiaux, Lisa Champault, Ursula Röthlisberger, Beat Ruhstaller, Christophe Ballif, Aïcha Hessler‐Wyser, Christian M. Wolff   +31 more
wiley   +1 more source

Single-cell bilayer design of a terahertz six-channel metasurface for simultaneous holographic and grayscale images. [PDF]

Sci Rep
Du Z, Zhu C, Song Z.
europepmc   +1 more source

Electron Extraction Optimization for Carbon‐Based Hole‐Conductor‐Free Perovskite Photovoltaics With Record 1.41 V VOC

Advanced Materials, EarlyView.
A gradient electron energy level strategy is constructed to reduce voltage losses in planar HTL‐free CsPbI2Br C‐PSCs. This electron extraction optimization enables rapid photogenerated electron extraction and carrier separation, thereby suppressing recombination at the back contact. The resulting PSCs deliver a record VOC of 1.41 V, a high PCE of 17.42%
Zhiqi Li, Xiyun Xie, Zhenhai Ai, Yu Han, Tao Zhu, Ruijie Ma, Heng Liu, Xinhui Lu, Qi Wei, Mingjie Li, Junyan Xiao, Kuan Liu, Zhiwei Ren, Gang Li   +13 more
wiley   +1 more source

Fontan Surgical Planning: Numerical Simulations Reveal Efficient Geometries Predicting Post-Surgical Outcomes. [PDF]

Braz J Cardiovasc Surg
Duarte PC, Murakami AN, Huebner R, Pinheiro HD.   +3 more
europepmc   +1 more source

Dynamic Magnonic Crystals Based on Spatiotemporal Plasmon Excitation

Advanced Materials, EarlyView.
Hybrid magnonic‐plasmonic metamaterials enabling spatiotemporal optical control of spin‐wave transport are demonstrated. These structures integrate periodic stripes of gold nanodisk arrays with low‐damping yttrium iron garnet films to realize dynamically reconfigurable magnonic crystals.
Nikolai Kuznetsov, Huajun Qin, Lukáš Flajšman, Sebastiaan van Dijken   +3 more
wiley   +1 more source

Resolution enhancement on single-shot X-ray spectrometers using a detuned non-dispersive multi-crystal analyzer. [PDF]

J Synchrotron Radiat
Osaka T, Inubushi Y, Kameshima T, Inoue I, Yabashi M.   +4 more
europepmc   +1 more source