Results 31 to 40 of about 30,232 (262)

Nanosecond Ferroelectric Switching of Intralayer Excitons in Bilayer 3R-MoS_{2} through Coulomb Engineering

Physical Review X
High-speed, nonvolatile tunability is critical for advancing reconfigurable photonic devices used in neuromorphic information processing, sensing, and communication.
Jing Liang, Yuan Xie, Dongyang Yang, Shangyi Guo, Kenji Watanabe, Takashi Taniguchi, Jerry I. Dadap, David Jones, Ziliang Ye   +8 more
doaj   +1 more source

Optical Fiber Delivered Ultrafast Plasmonic Optical Switch

Advanced Science, 2021
Ultrafast optical switch based on plasmonic nanostructures has large application potentials in optical logic circuits and optical communication systems.
Jinghui Yang, Xinping Zhang
doaj   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Achieving Long Distance Sensing Using Semiconductor Laser with Optical Feedback by Operating at Switching Status

Sensors, 2022
In this study, a novel distance sensing method is presented by using a semiconductor laser (SL) with optical feedback (OF) and operating the SL at a switching status happened between two nonlinear dynamic states (stable state and period-one state).
Bairun Nie, Yuxi Ruan, Yanguang Yu, Qinghua Guo, Can Fang, Jiangtao Xi, Jun Tong, Haiping Du   +7 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Femtosecond switching of strong light-matter interactions in microcavities with two-dimensional semiconductors

Nature Communications
Ultrafast all-optical logic devices based on nonlinear light-matter interactions hold the promise to overcome the speed limitations of conventional electronic devices.
Armando Genco, Charalambos Louca, Cristina Cruciano, Kok Wee Song, Chiara Trovatello, Giuseppe Di Blasio, Giacomo Sansone, Sam A. Randerson, Peter Claronino, Kyriacos Georgiou, Rahul Jayaprakash, Kenji Watanabe, Takashi Taniguchi, David G. Lidzey, Oleksandr Kyriienko, Stefano Dal Conte, Alexander I. Tartakovskii, Giulio Cerullo   +17 more
doaj   +1 more source

Integrating all-optical switching with spintronics

Nature Communications, 2019
The high speed switching and energy efficiency nature grant all-optical switching (AOS) great potential for future photonic integrated spintronic devices.
M. L. M. Lalieu, R. Lavrijsen, B. Koopmans   +2 more
doaj   +1 more source

Ultracompact Si-GST Hybrid Waveguides for Nonvolatile Light Wave Manipulation

IEEE Photonics Journal, 2018
Phase change materials combined with silicon photonics are emerging as a promising platform to realize miniature photonic devices. We study the basic optical properties of a subwavelength-dimension silicon ridge waveguide with a 20-nm-thick Ge2Sb2Te5 ...
Hanyu Zhang, Linjie Zhou, B. M. A. Rahman, Xing Wu, Liangjun Lu, Youhua Xu, Jian Xu, Junchao Song, Zhigao Hu, Liping Xu, Jianping Chen   +10 more
doaj   +1 more source

Uniform Amorphization of Crystalline Silicon Surfaces Enabled by Deep Ultraviolet Femtosecond Laser Pulses

Advanced Engineering Materials, EarlyView.
Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali, Magali Gregoire, Matys Guyard, Tatiana Itina, David Grojo, Pol Sopeña   +5 more
wiley   +1 more source

Highly Transparent ITO/HfO₂/ITO Device for Visible-Light Sensing

IEEE Access, 2020
Transparent visible-light sensors are of critical importance in invisible optoelectronic circuits as the interface between the optical and electrical domains.
Pranav Sairam Kalaga, Dayanand Kumar, Diing Shenp Ang, Zviad Tsakadze   +3 more
doaj   +1 more source