Results 111 to 120 of about 23,614 (296)

Investigation of Structural, Mechanical and Electrochemical Properties of Temperature‐Dependent Dual AlN/TiAlN Coating Synthesized by CVD Process

Advanced Materials Interfaces, EarlyView.
This study investigates thermally CVD‐deposited AlN/TiAlN dual‐layer coatings over a Si substrate, focusing on the temperature‐dependent process‐structure relationship. Systematic characterization reveals that a dense AlN interlayer combined with an optimally deposited TiAlN top layer provides enhancement in mechanical strength, tribological stability,
Soham Das, Abhishek Kundu, Debjyoti Sahu, Nikhil Kumar, Spandan Guha   +4 more
wiley   +1 more source

Deterministic polarization chaos from a laser diode

, 2013
Fifty years after the invention of the laser diode and fourty years after the report of the butterfly effect - i.e. the unpredictability of deterministic chaos, it is said that a laser diode behaves like a damped nonlinear oscillator.
A Argyris, A Garfinkel, A Provenzale, A Scirè, A Uchida, A Wolf, AA Andronov, B Nagler, C Bracikowski, CO Weiss, D Rontani, DS Coffey, EN Lorenz, F Albert, F Hopfer, F Meier, FT Arecchi, GD VanWiggeren, GD VanWiggeren, H Haken, H Kawaguchi, H Poincaré, HDI Abarbanel, Hugo Thienpont, I Kanter, I Kanter, J Martin-Regalado, J Renaudier, JR Tredicce, K Fraedrich, K Kubodera, K Otsuka, Krassimir Panajotov, L Larger, L Olejniczak, LR Rabiner, M San Miguel, M Sciamanna, M Sondermann, Marc Sciamanna, Martin Virte, MB Willemsen, N Oliver, NC Gerhardt, P Grassberger, S Hovel, S Steingrube, SF Yu, SH Strogatz, T Adachi, T Mukai, T Yamada, T-Y Li, TB Simpson   +53 more
core   +3 more sources

From Copper Nanoparticles to Alumina Encapsulated Porous Layers With Enhanced Mechanical Stability

Advanced Materials Interfaces, EarlyView.
This study analyzes the synthesis‐structure relation of individual Cu nanoparticles and highly porous nanoparticle‐based Cu films using different sputtering‐based nanoparticle sources. The inherent mechanical instability of the films is tackled with Al2O3 encapsulation through atomic layer deposition, enabling 4‐fold increase in critical force in ...
Dominik Gutnik, Daniele Casari, Laszlo Pethö, Michael Burtscher, Anna M. Hofer‐Roblyek, Christian Mitterer, Barbara Putz   +6 more
wiley   +1 more source

Low Threshold Current and Polarization-Stabilized 795 nm Vertical-Cavity Surface-Emitting Lasers. [PDF]

Nanomaterials (Basel), 2023
Fu Q, Sun Y, Yu S, Wang A, Yin J, Zhao Y, Dong J.   +6 more
europepmc   +1 more source

Polarization properties of vertical-cavity surface-emitting lasers

IEEE Journal of Quantum Electronics, 1997
Polarization-state selection, polarization-state dynamics, and polarization switching of a quantum-well vertical-cavity surface-emitting laser (VCSEL) for the lowest order transverse spatial mode of the laser is explored using a recently developed model that incorporates material birefringence, the saturable dispersion characteristic of semiconductor ...
MARTIN REGALADO J., PRATI, FRANCO, SAN MIGUEL M., AND ABRAHAM N. B.   +3 more
openaire   +3 more sources

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Recent Advances of Slip Sensors for Smart Robotics

Advanced Materials Technologies, EarlyView.
This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang, Liao Wu, Shuai He, Zhao Sha, Yuwan Huang, Shuying Wu, Dewei Chu, Chun H. Wang, Shuhua Peng   +8 more
wiley   +1 more source

Surface-emitting lasers meet metasurfaces

Light: Science & Applications
The integration between vertical-cavity surface-emitting lasers and metasurfaces has been demonstrated to enable on-chip high-angle illumination for total internal reflection and dark-field microscopy.
Nir Shitrit
doaj   +1 more source

Cap‐oPMN: Oral Inflammatory Load Quantification Using Capillary Microfluidics and Automated Image Processing

Advanced Materials Technologies, EarlyView.
ABSTRACT Quantifying oral polymorphonuclear neutrophils (oPMNs) is a clinically validated approach for assessing periodontal inflammation. However, current methods, such as manual hemocytometry and flow cytometry, are time‐consuming (>3 h), require invasive sampling, and depend on staining and complex instrumentation, making them unsuitable for point ...
Mohsen Hassani, Azam Zare, Fatemeh Soheili, S. M. Mahdi H. Daneshvar, Mahdi Amrollahi Biouki, Yasaman Tahernezhad, Chunxiang Sun, Michael Glogauer, Ebrahim Ghafar‐Zadeh, Amir Sanati‐Nezhad   +9 more
wiley   +1 more source

Vision‐Augmented Wearable Interfaces: Bioinspired Approaches for Realistic AI‐Human‐Machine Interaction

Advanced Materials Technologies, EarlyView.
This review presents recent progress in vision‐augmented wearable interfaces that combine artificial vision, soft wearable sensors, and exoskeletal robots. Inspired by biological visual systems, these technologies enable multimodal perception and intelligent human–machine interaction.
Jihun Lee, Gwuidong Ryu, Kisoo Kim, Feng Xu, Won Gu Lee   +4 more
wiley   +1 more source