Results 101 to 110 of about 251,417 (294)

RF photonic delay lines using space-division multiplexing

, 2018
We review our last work on dispersion-engineered heterogeneous multicore fiber links designed to act as tunable true time delay lines for radiofrequency signals.
Garcia, Sergi, Gasulla, Ivana
core   +1 more source

Photon Avalanching Nanoparticles: The Next Generation of Upconverting Nanomaterials?

Advanced Functional Materials, EarlyView.
This Perspective outlines the mechanistic foundations that enable photon‐avalanche (PA) behavior in lanthanide nanomaterials and contrasts them with emerging application spaces and forward‐looking design strategies. By bridging threshold engineering, energy‐transfer dynamics, and materials engineering, we provide a coherent roadmap for advancing the ...
Kimoon Lee, Yunseo Kim, Hyeong‐ku Jo, Dongjoon Yoon, Byeonghyeok Im, WonJeong Yu, Eui‐Rim On, Changhwan Lee   +7 more
wiley   +1 more source

Design and analysis of annulus core few mode EDFA for modal gain equalization

, 2016
Few-mode fiber amplifier is widely under study to overcome the issue of internet traffic in optical communication. This article proposes annulus core few-mode erbium doped fiber (FM-EDF) with annulus or extra annulus doping for amplification of the LP01,
Gaur, Ankita, Rastogi, Vipul
core   +1 more source

Dispensing Volumetric Additive Manufacturing

Advanced Functional Materials, EarlyView.
Dispensing volumetric additive manufacturing (DVAM) prints 3D structures inside a photocurable resin droplet suspended from the tip of a glass pipette, enabling sequential printing without resin vats or manual part removal. Real‐time droplet profiling and ray‐tracing‐based correction compensate for optical distortion at the curved resin‐air interface ...
Hongryung Jeon, Yunsoo Lee, Seobin Park, Kyung‐Hwan Kim, Junyoung Seo, Im Doo Jung   +5 more
wiley   +1 more source

All-fiber highly efficient delivery of 2 kW laser over 2.45 km hollow-core fiber

Nature Communications
Anti-resonant hollow-core fibers have emerged as an important medium for high-power laser delivery due to their low optical nonlinearity and high damage threshold.
Jing Shi, Binyu Rao, Zilun Chen, Zefeng Wang, Guangrong Sun, Zuying Xu, Zhen Huang, Peng Li, Zihan Dong, Min Fu, Xin Tian, Baolai Yang, Jian Zhang, Zhiyue Zhou, Tianyu Li, Lei Zhang, Biao Shui, Chenxin Gao, Jinbao Chen   +18 more
doaj   +1 more source

Bio‐Inspired Multimodal Hardware Front‐End Enabled by 2D Floating‐Gate Memory for UAV Perception

Advanced Functional Materials, EarlyView.
A MoS2/h‐BN /graphene floating‐gate memory underpins a bio‐inspired multimodal front end that integrates visual, inertial, and airflow cues. A 4 × 4 FG memory array encodes temporal intensity differences, while IMU‐ and airflow‐driven threshold modulation suppresses self‐motion artifacts, enabling fast, low‐power, robust autonomous UAV tracking and ...
Lianghao Guo, Yue Cheng, Cong Li, Xiaoyu Guo, Jiankai Yin, Dadong Fan, Zhenyu Xu, Chenyu Tang, Arokia Nathan, Shuo Gao, Li Tao, Luigi G. Occhipinti   +11 more
wiley   +1 more source

High-speed PAM4-based Optical SDM Interconnects with Directly Modulated Long-wavelength VCSEL

, 2018
This paper reports the demonstration of high-speed PAM-4 transmission using a 1.5-{\mu}m single-mode vertical cavity surface emitting laser (SM-VCSEL) over multicore fiber with 7 cores over different distances.
Amann, Markus-Christian, Bauwelinck, Johan, Chen, Jiajia, Fu, Songnian, Gan, Lin, Jacobsen, Gunnar, Li, Haolin, Lin, Rui, Liu, Deming, Ozolins, Oskars, Pang, Xiaodan, Popov, Sergei, Schatz, Richard, Spiga, Silvia, Tang, Ming, Tong, Weijun, Torfs, Guy, Udalcovs, Aleksejs, Van Kerrebrouck, Joris, Yin, Xin, Zhang, Lu   +20 more
core   +1 more source

Engineering Strategies for Stable and Long‐Life Alkaline Zinc‐Based Flow Batteries

Advanced Functional Materials, EarlyView.
Alkaline zinc‐based flow batteries face persistent challenges from unstable zinc deposition, including dendrite growth, passivation, corrosion, and hydrogen evolution, which severely limit cycling stability. Current research addresses these issues through coordinated electrode structuring, electrolyte regulation, and membrane design to control zinc ...
Yuran Bai, Xiaoyu Huo, Xin Long, Enkang Fu, Xusong Gong, Lei Wei, Liang An   +6 more
wiley   +1 more source

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

Advanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley   +1 more source

Research on the Mode Dependent Loss in the Trans-oceanic Coupled Core Multi Core Fiber Links

Guangtongxin yanjiu
【Objective】Over 99% international data are transmitted over optical submarine cables. However, the main challenges of optical submarine communications are the feeding power and mechanical size limitation.
SUN Lin, MAO Meng, ZHANG Lu, WANG Weiye, LIU Ning, SHEN Gangxiang   +5 more
doaj