Results 71 to 80 of about 479,261 (393)

Controlled Aggregation of Pyrene‐Based Supramolecular Nanostructures for Light‐Driven Switchable H2 or H2O2 Production

Advanced Functional Materials, EarlyView.
This work reports the self‐assembly of a pyrene derivative into two distinct nanostructures and their application in visible‐light photocatalysis. The two nanostructures exhibit completely different yet complementary photocatalytic activities, promoting either H2 or H2O2 evolution.
Marianna Barbieri, Matilde Doardo, Ilaria Fortunati, Anna Fortunato, Elisabetta Collini, Francesca Arcudi, Luka Ðorđević   +6 more
wiley   +1 more source

Black Phosphorus-Film with Drop-Casting Method for High-Energy Pulse Generation From Q-Switched Er-Doped Fiber Laser

Photonic Sensors, 2019
We have reported high-energy pulse generation from a Q-switched Er-doped fiber laser based on black phosphorus (BP) with a drop-casting method. Poly dimethyl diallyl ammonium (PDDA) is employed to protect BP.
Huanhuan Liu, Wei Song, Ye Yu, Qiao Jiang, Fufei Pang, Tingyun Wang   +5 more
doaj   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Effect of Bismuth Doping on Noise Figure of Er-Doped Silica Fiber

IEEE Photonics Journal, 2023
We investigate the spectral and amplification characteristics of Bi/Er co-doped fiber (BEDF) and Er-doped fiber (EDF), prepared by atomic layer deposition (ALD).
Weizhu Ji, Jianxiang Wen, Yanhua Dong, Junnan Zhang, Xiuxiu Chen, Yan Chen, Zexin Zheng, Tingyun Wang   +7 more
doaj   +1 more source

Demonstration of analyzers for multimode photonic time-bin qubits

, 2018
We demonstrate two approaches for unbalanced interferometers as time-bin qubit analyzers for quantum communication, robust against mode distortions and polarization effects as expected from free-space quantum communication systems including wavefront ...
Agne, Sascha, Bourgoin, Jean-Philippe, Jennewein, Thomas, Jin, Jeongwan, Lütkenhaus, Norbert, Zhang, Yanbao   +5 more
core   +1 more source

Novel Method for Improving the Capacity of Optical MIMO System Using MGDM [PDF]

, 2014
In current local area networks, multimode fibers (MMFs), primarily graded index (GI) MMFs, are the main types of fibers employed for data communications.
Aggoun, A., Attia, R., Baklouti, F., Dayoub, I., Haxha, Shyqyri   +4 more
core   +6 more sources

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

Advanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz, Jonas De Breuck, Sahar Salehi, Meike N. Leiske   +3 more
wiley   +1 more source

Grayscale two-photon 3D printed gradient-refractive-index metamaterial lens for dual-band mid-infrared imaging

APL Photonics
Gradient refractive index (GRIN) metamaterial lenses can achieve multi-band fusion infrared imaging and has the characteristics of integration, light weight, and achromaticity, compared with existing curved refractive lenses group.
Hai-Chao Luo, Yuan-Yuan Zhao, Xiang-Yu Zhao, Yao-Yu Cao, Xuan-Ming Duan   +4 more
doaj   +1 more source

High-order-mode Brillouin random fiber laser based on distributed Rayleigh scattering in all-few mode fiber half-open cavity

Results in Physics
A high-order-mode (HOM) Brillouin random fiber laser (BRFL) based on distributed Rayleigh scattering in an all-few-mode fiber random cavity is proposed and experimentally demonstrated.
Zizhou Wei, Liang Zhang, Yichun Li, Wei Chen, Han Wang, Mengshi Zhu, Xianglong Zeng, Fufei Pang, Tingyun Wang   +8 more
doaj   +1 more source

Roughness Estimation of Multimode Rectangular Optical Waveguide Based on the Scattering Loss Difference Between SMFW and MMFW Structures

IEEE Photonics Journal, 2017
Based on the scattering loss difference between the single-mode-fiber-optical-waveguide (SMFW) and multimode-fiber-optical-waveguide (MMFW) structures, a method to estimate the roughness of multimode rectangular optical waveguide (ROW) is proposed. Based
Chuanlu Deng, Tingyun Wang, Jiamin Chen, Chengbo Mou, Xiaobei Zhang, Xinjie Yan, Fufei Pang   +6 more
doaj   +1 more source