Results 111 to 120 of about 3,383,190 (300)

Modal gain characteristics of a two-section InGaAs/GaAs double quantum well passively mode-locked laser with asymmetric waveguide. [PDF]

Sci Rep, 2022
Qiao Z, Li X, Sia JXB, Wang W, Wang H, Li Z, Zhao Z, Li L, Gao X, Bo B, Qu Y, Liu G, Liu C.   +12 more
europepmc   +1 more source

A Multifunctional Ionograsper Enabling Ion‐Redistribution Proximity Sensing and Structural‐Reconfiguration‐Driven Bidirectional Actuation

Advanced Materials, EarlyView.
A solid‐state ionic actuator integrates sensing, actuation, and memory within one material. A brief UV pulse induces long‐lasting deformation via coupled network rearrangement, dehydration, and rehydration, while ionic redistribution enables self‐powered sensing, supporting multifunctional, energy‐efficient soft robotic functions without continuous ...
Yong Min Kim, Jin Han Kwon, Hyeon Woo Yang, Sungryong Kim, Gyeong Rok Lee, Hong Chul Moon   +5 more
wiley   +1 more source

Multistability manipulation by reinforcement learning algorithm inside mode-locked fiber laser

Nanophotonics
Fiber mode-locked lasers are nonlinear optical systems that provide ultrashort pulses at high repetition rates. However, adjusting the cavity parameters is often a challenging task due to the intrinsic multistability of a laser system.
Kokhanovskiy Alexey, Kuprikov Evgeny, Serebrennikov Kirill, Mkrtchyan Aram, Davletkhanov Ayvaz, Bunkov Alexey, Krasnikov Dmitry, Shashkov Mikhail, Nasibulin Albert, Gladush Yuriy   +9 more
doaj   +1 more source

Controlled Synthesis of Tri‐ and Multi‐Doped Graphene

Advanced Materials Interfaces, EarlyView.
This review systematically evaluates synthesis routes for tri‐ and multi‐doped graphene, from hydrothermal and pyrolysis methods to flash Joule heating, critically assessing how each governs dopant incorporation, bonding configuration, and resulting electronic properties.
Maria Hasan, Alicja Bachmatiuk, Gražyna Simha Martynková, Karla Čech Barabaszová, Mark Hermann Rümmeli   +4 more
wiley   +1 more source

Enhanced Magnetism in Cation‐Modulated Manganite Heterostructures

Advanced Materials Interfaces, EarlyView.
Magnetic contrast is introduced within a single manganite system via a small modulation of the cation ratio. Enhanced magnetization occurs in superlattices with small stoichiometric differences. The combined SQUID, polarized neutron reflectometry, and x‐ray absorption spectroscopy results are consistent with the interfacial electronic reconstruction ...
Sangkyun Ryu, R. F. Need, Brian Kirby, Tae‐Yeol Jeon, Younghak Kim, Jin H. Cho, Sungkyun Park, Hyoungjeen Jeen   +7 more
wiley   +1 more source

Wavelength-tunable passively mode-locked mid-infrared Er3+-doped ZBLAN fiber laser

, 2017
A passively mode-locked Er3+-doped ZBLAN fiber laser around 3 mu m with a wide wavelength tuning range is proposed and demonstrated. The laser cavity was comprised of a semiconductor saturable absorber mirror and a blazed grating to provide a ...
Tao, Mengmeng, Mengmeng Tao, Si, Jinhai, Jinhai Si, Yishan Wang, Chen, Hongwei, Yanlong Shen, Shen, Yanlong, Luan, Kunpeng, Kunpeng Luan, Hongwei Chen, Wang, Yishan   +11 more
core   +1 more source

Liquid‐Crystal‐Based Reconfigurable Intelligent Surface for 7 GHz Mobile Communication

Advanced Materials Technologies, EarlyView.
The glass‐based liquid‐crystal reconfigurable intelligent surface (LC‐RIS) integrates active‐matrix driving and blind‐greedy phase optimization within a 5G‐NR OFDM framework. This enables continuously tunable and autonomous enhancement of wireless coverage. Leveraging the transparency and manufacturability of liquid crystal panels, it is ideally suited
Tien‐Lun Ting, Yuh‐Chyi Chang, Yi‐Chan Hung, Cheng‐Yuan Hsiao, Chao‐Kai Wen, Tsung‐Hsien Lin   +5 more
wiley   +1 more source

On‐Chip Microheater‐Based Back‐End‐of‐Line Compatible Synthesis of VO2 Films for Reconfigurable Silicon Photonics

Advanced Optical Materials, EarlyView.
A back‐end‐of‐line‐compatible microheater platform enables localized synthesis and reversible switching of high‐quality VO2 directly on silicon photonic chips. The approach overcomes conventional thermal‐budget and patterning constraints while delivering device performance comparable to high‐temperature‐grown films, providing a scalable pathway for ...
Khoi Phuong Dao, Siddharth Kumar, Zhiyun Xu, Junhe Zhang, Qinyuan Xue, Rui Chen, Shriram Ramanathan, Juejun Hu   +7 more
wiley   +1 more source

1.4 W Passively Q-Switched Mode-Locked Tm:CALGO Laser with a MoS₂ Saturable Absorber

Photonics
The passively Q-switched mode-locked (QML) operation of a Tm:CaGdAlO4 (Tm:CALGO) bulk laser pumped by a wavelength-tunable Ti:sapphire oscillator using molybdenum disulfide (MoS2) as a saturable absorber was demonstrated.
Weijun Ling, Hao Xu, Jinfang Yang, Xue Qiu, Taotao He, Purui An, Chao Bi, Shichao Yuan, Man Wang, Xinye Tian, Zhong Dong   +10 more
doaj   +1 more source

Wavelength‐Multiplexed 2D Beam Steering via a Passive Diffractive Network

Advanced Optical Materials, EarlyView.
Illustration of a wavelength‐multiplexed diffractive beam steering system, which is composed of K cascaded diffractive layers, each containing phase‐modulating elements that are jointly optimized using deep learning–based optimization. When illuminated with a set of wavelengths {λ1,λ2,…,λNw}$\{ {{{\lambda }_1},{{\lambda }_2},\ldots ,{{\lambda }_{{{N}_w}
Che‐Yung Shen, Yuhang Li, Çağatay Işıl, Tianyi Gan, Mona Jarrahi, Aydogan Ozcan   +5 more
wiley   +1 more source