Results 91 to 100 of about 8,387 (250)

One‐Step, High‐Removal‐Rate and Low‐Damage Chemical Mechanical Polishing of InP Enabled by Hydrolysis Activated PF6− with In Situ Fluoride Passivation

Advanced Science, EarlyView.
In this work, we propose a CMP method for InP using NH4PF₆, which hydrolyzes under In3+ catalysis to form reactive species. These convert InP into low‐binding‐energy fluorides, facilitating removal and dissolution. The process delivers high material removal rates, smooth surfaces, and fluorine passivation that lowers defect density and improves ...
Shigong Fu, Jianwei Zhou, Chenwei Wang, Yanchao Ge, Chong Luo, Yuhang Qi   +5 more
wiley   +1 more source

Laser Processing Methods in Precision Silicon Carbide Wafer Exfoliation: A Review

Journal of Manufacturing and Materials Processing
The rapid advancement of high-performance electronics has intensified the demand for wide-bandgap semiconductor materials capable of operating under high-power and high-temperature conditions.
Tuğrul Özel, Faik Derya Ince
doaj   +1 more source

Retina‐Inspired Bi‐Based Terahertz Photonic Neuromorphic Devices

Advanced Science, EarlyView.
Combined with effective band alignment and substrate engineering, bismuth materials are introduced to form terahertz photonic bio‐inspired devices with picosecond short‐term plasticity to enable multi‐scene visual perception. Thus obtained hardware through the terahertz optical neural network (THz‐ONN) demonstrates high recognition accuracy, providing ...
Pujing Zhang, Donggang Xie, Longyu Shi, Mengyuan Wang, Huiwen Shi, Yu Wu, Menglei Li, Guangwei She, Peijie Wang, Wensheng Shi, Cunlin Zhang, Kuijuan Jin, Guozhen Yang, Qingli Zhou, Chen Ge   +14 more
wiley   +1 more source

Ultrafast modulation of second harmonic waves through polarization selective interferometric autocorrelation

PhotoniX
Ultrafast modulation of light is of great importance in optical communications, optical spectroscopy, precision measurement and so on. To achieve better modulation performance, various materials platforms including photonic crystals, two-dimensional ...
Heng Wang, Kingfai Li, Zixian Hu, Qichang Ma, Xinmou Lu, Jiaming Huang, Hoilam Tam, Junhong Deng, Guixin Li   +8 more
doaj   +1 more source

Shadow‐Calibrated Stereo Vision for Colorimetric Sweat Analysis

Advanced Science, EarlyView.
By establishing a mathematical model that reconstructs 3D structures through geometric features of object shadows under controlled illumination, and combining it with Convolutional Neural Network‐based 2D image analysis for volumetric calibration, this work enables highly accurate 3D morphological reconstruction.
Ting Xiao, Yuwen Yan, Miaorong Lin, Jiahui Chen, Jianxin Meng, Xiang Cui, Peng Zhang, Fengyu Li   +7 more
wiley   +1 more source

Ultrafast Laser Processing of Nanostructured Patterns for the Control of Cell Adhesion and Migration on Titanium Alloy. [PDF]

Nanomaterials (Basel), 2020
Klos A, Sedao X, Itina TE, Helfenstein-Didier C, Donnet C, Peyroche S, Vico L, Guignandon A, Dumas V.   +8 more
europepmc   +1 more source

Defect‐Functionalization‐Mediated Tunneling Drives Nonlinear Photoemission in Perovskites

Advanced Science, EarlyView.
This cover illustration depicts CsPbBr3 perovskite nanocrystals embedded with functionalized defect vacancies, where electrons migrate through defect‐mediated pathways and emit as lightning‐like beams. The imagery visualizes the core discovery of our work—defect‐functionalization‐mediated tunneling enabling nonlinear photoemission, where deep‐level ...
Hang Ren, Xi Zhang, Yicheng Wang, Shuai Wang, Zhi Wang, Yumeng Li, Jikai Yang, Xin Wang, Weijun Chen, Yining Mu   +9 more
wiley   +1 more source

Ultrafast quantum control of atomic excited states via interferometric two-photon Rabi oscillations

Communications Physics
Quantum-state manipulation through coherent interaction with a radiation field is a fundamental process with broad implications in quantum optics and quantum information processing.
Yudong Chen, Sainan Peng, Zongyuan Fu, Liyang Qiu, Guangyu Fan, Yi Liu, Saijun Wu, Xinhua Xie, Zhensheng Tao   +8 more
doaj   +1 more source

Strongly nonlinear antiferromagnetic dynamics in high magnetic fields

Results in Physics
Antiferromagnetic (AFM) materials possess a well-recognized potential for ultrafast data processing thanks to their intrinsic ultrafast spin dynamics, absence of stray fields, and large spin transport effects.
Pavel Stremoukhov, Ansar Safin, Casper F. Schippers, Reinoud Lavrijsen, Maurice Bal, Uli Zeitler, Alexandr Sadovnikov, Elizaveta Kozlova, Kamyar Saeedi Ilkhchy, Sergey Nikitov, Andrei Kirilyuk   +10 more
doaj   +1 more source

Structural and Compositional Effects on the Scintillation Properties of Fast Emitting Metal‐Organic Frameworks

Advanced Science, EarlyView.
The crystalline structure, the atomic numbers of the constituent elementsand the size of MOF crystals each influence their photoluminescence and scintillation properties in distinct ways. Together, these factors provide valuable guidelines for designing systems with optimized performance and tunable timing characteristics, arising from the synergistic ...
Francesca Cova, Jacopo Perego, Biplab Joarder, Nobuhiro Yanai, Anna Vedda, Silvia Bracco, Angiolina Comotti, Angelo Monguzzi, Irene Villa   +8 more
wiley   +1 more source