Results 91 to 100 of about 22,226 (293)

Stabilizing Frustrated Phase Transitions in Selective Oxidation Reactions

Advanced Materials, EarlyView.
Using multimodal operando spectromicroscopy, the frustrated phase transition responsible for selective oxidation over cobalt oxide spinel catalysts is identified, corresponding to combined surface reaction and Mars‐van Krevelen (MvK) dynamics. This regime is disrupted by the formation of mobile vacancies and the depletion of active oxygen at high ...
Luis Sandoval‐Diaz, Thomas Götsch, Daniel Cruz, Maurits Vuijk, Juan M. Lombardi, Markus Pietsch, Kassiogé Dembélé, Adnan Hammud, Karsten Reuter, Christoph Scheurer, Axel Knop‐Gericke, Thomas Lunkenbein   +11 more
wiley   +1 more source

Optical Orbital Angular Momentum Demultiplexing and Channel Equalization by Using Equalizing Dammann Vortex Grating

Advances in Condensed Matter Physics, 2017
A novel equalizing Dammann vortex grating (EDVG) is proposed as orbital angular momentum (OAM) multiplexer to realize OAM signal demultiplexing and channel equalization. The EDVG is designed by suppressing odd diffraction orders and adjusting the grating
Mingyang Su, Junmin Liu, Yanliang He, Shuqing Chen, Ying Li   +4 more
doaj   +1 more source

Reflective 2D diffraction grating based on short pitch chiral liquid crystal [PDF]

, 2023
Miglé Stebryté, Inge Nys, Jeroen Beeckman, Kristiaan Neyts   +3 more
openalex   +1 more source

Two‐Photon 3D Printing of Functional Microstructures Inside Living Cells

Advanced Materials, EarlyView.
This study demonstrates 3D printing inside living cells by using two‐photon photo‐lithography. A bio‐compatible photoresist is injected into cells and selectively polymerized with a femtosecond laser, creating custom‐shaped intracellular structures with submicron resolution.
Maruša Mur, Aljaž Kavčič, Uroš Jagodič, Rok Podlipec, Matjaž Humar   +4 more
wiley   +1 more source

High‐κ Perovskite‐Like Ternary Niobium Oxide Dielectrics for 2D Electronics

Advanced Materials, EarlyView.
High‐κ dielectrics are vital for scaled electronics. Here, a family of 2D high‐κ perovskite‐like ternary niobium oxides is synthesized via a molten salt‐assisted method. Their integration into FETs and logic gates reveals superior switching characteristics, providing a fresh material platform and new insights for the advancement of high‐performance 2D ...
Biao Zhang, Jianmiao Guo, Jianmin Yan, Jialiang Wang, Chao Yun, Guang Zeng, Jie Li, Cong Wang, Zhengdao Xie, Yanglong Hou, Yang Chai   +10 more
wiley   +1 more source

Dynamic Optical Lattices Through Conducting Polymer‐Gated Confinement

Advanced Materials, EarlyView.
The conducting polymer gate is incorporated into organic dielectric lattices to control the dynamic switching of nonlocal Mie resonances in the visible/NIR regions. The “closed gate” from oxidized PEDOT confines the light within dielectric nanocylinders and activates nonlocal Mie resonances, while the “opened gate” from reduced PEDOT facilitates ...
Dongqing Lin, Yulong Duan, Suraya Kazi, Magnus P. Jonsson   +3 more
wiley   +1 more source

Fourier Analysis of the Nonlinearity of Surface-Relief Optical Transmission Gratings of Quasi-Sinusoidal Profile Fabricated in Optical Glasses and Crystals by Carbon, Nitrogen and Oxygen Ion Microbeams

Photonics
Optical transmission gratings with quasi-sinusoidal surface-relief profiles were inscribed in IOG and Pyrex glasses and in Bi12GeO20, Er: LiNbO3, and Er: Fe: LiNbO3 crystals by microbeams of carbon, nitrogen, and oxygen ions at ion energies of 5, 6, and ...
István Bányász, István Rajta, Vladimir Havránek, Robert Magnusson, Gyula Nagy   +4 more
doaj   +1 more source

Modeling the interaction of an arbitrary light field with a diffraction\n grating by the Monte Carlo method [PDF]

, 2013
Vladimir V. Savukov, I. V. Golubenko
openalex   +1 more source

Mechanically Tunable Mechanochromic Device with Covert‐Overt Structural Color and Modulation of its Transparency

Advanced Materials Interfaces, EarlyView.
This study presents a novel mechanically responsive optical device that modulates light transmission and generates iridescent structural colors under reflection. The optical transition arises from the exposure of nanoparticles upon stretching, which are initially embedded beneath the surface.
Nguyen Hoang Minh, Kwanoh Kim, Do Hyun Kang, Yeong‐Eun Yoo, Jae Sung Yoon   +4 more
wiley   +1 more source

Light‐Induced Precipitation of an Inorganic Phosphate for Direct Writing of Thin Films and Templating Complex Mineral Morphologies

Advanced Materials Interfaces, EarlyView.
Photoinduced patterning of inorganic materials promises advanced functionality, but often suffers from granular structures. Here, UV‐triggered dephosphorylation is used to guide the precipitation of barium phosphate with spatial control and structural continuity.
Patricia Besirske, Sara Bäum, Helmut Cölfen, Cristina Ruiz‐Agudo, Marius Schoettle, Willem L. Noorduin   +5 more
wiley   +1 more source