Results 81 to 90 of about 64,392 (262)

Nanoporous Scaffold‐Assisted Ligand‐Free CsPbBr3 Quantum Dots for Bright and Ultrapure Green Light‐Emitting Diodes

Advanced Optical Materials, EarlyView.
Networks of confined CsPbBr3 perovskite quantum dots, synthesised within nanoporous silica scaffolds using precursors containing different combinations of butylammonium bromide and crown ether additives, enable electroluminescent devices with 400‐fold enhanced charge injection and transport with respect to control devices, yielding ultrapure green ...
Carlos Romero‐Pérez, Zhongcheng Yuan, Mauricio E. Calvo, Henry J. Snaith, Hernán Míguez   +4 more
wiley   +1 more source

Kovacs-like memory effect mediated fiber Bragg grating: resembling a silica quipu

Nature Communications
In antiquity, civilizations employed stone carvings and knotted quipu cords for information preservation. Modern telecommunications rely on optical fibers - silica glass strands engineered for light transmission - yet their capacity as archival media ...
Qiaochu Yang, Zhiyuan Xu, Xu Yue, Junqiu Long, Haopeng Wang, Yihan Zha, Furong Feng, Yang Ran, Bai-Ou Guan   +8 more
doaj   +1 more source

Photonic neuromorphic technologies in optical communications. [PDF]

Nanophotonics, 2022
Argyris A.
europepmc   +1 more source

Two‐Dimensional Isotropic Spatial Differentiation Through Complete Polarization Control

Advanced Optical Materials, EarlyView.
This work enables two‐dimensional isotropic spatial differentiation at planar interfaces over a wide range of incident angles by extending the output polarization from linear to elliptical. The choice of incident angle can be used to balance broader spectral response at low angles and higher edge‐detection efficiency at larger angles.
Doyoon Lee, Minkyung Kim
wiley   +1 more source

Design and numerical analysis of a gap-compensated low loss hollow-core antiresonant fiber with nested elliptical tubes

Scientific Reports
In this research, we propose a novel hollow-core anti-resonant fiber structure designed to enhance light confinement and reduce losses. Our simulation results indicate that the LP01 mode loss is reduced to 1.807 × 10⁻⁶ dB/km at a wavelength of 1.52 μm ...
Yuemei Li, Zhaoyang Zhang, Yao Guo, Haobo Guo, Zhiguo Zhang   +4 more
doaj   +1 more source

Demonstration of 100 Gbps coherent free-space optical communications at LEO tracking rates. [PDF]

Sci Rep, 2022
Walsh SM, Karpathakis SFE, McCann AS, Dix-Matthews BP, Frost AM, Gozzard DR, Gravestock CT, Schediwy SW.   +7 more
europepmc   +1 more source

Rotating Fluorescent Nanodiamond Assemblies With Focused Laguerre–Gaussian Beams

Advanced Optical Materials, EarlyView.
Self‐assembled fluorescent nanodiamond clusters are optically trapped and driven into controlled two‐dimensional rotation with Laguerre–Gaussian beams. With localized optical excitation, optically detected magnetic resonance spectra are collected at defined points along the orbit in a uniform external magnetic field.
Adam Stewart, Anthony J. El‐Helou, Ying Zhu, David McGloin, David A. Simpson, Peter J. Reece   +5 more
wiley   +1 more source

Spaceborne snapshot compressive hyperspectral imaging

Light: Science & Applications
Hyperspectral remote sensing images provide rich spatial and spectral information about the Earth’s surface, making them an essential tool for Earth observation.
Zhenming Yu, Liming Cheng, Jingyue Ma, Jiayu Di, Liang Lin, Ning Zhan, Tongshuo Zhang, Xing Zhong, Xiaojun He, Shanbo Chen, Xiaoxue Gong, Xu Cao, Huibin Zhang, Bingli Guo, Yongli Zhao, Shanguo Huang, Kun Xu   +16 more
doaj   +1 more source

Femtosecond Laser-Fabricated Photonic Chips for Optical Communications: A Review. [PDF]

Micromachines (Basel), 2022
Cai C, Wang J.
europepmc   +1 more source

Deterministic Integration of Quantum Emitters and Optical Cavities in a Van Der Waals Crystal

Advanced Optical Materials, EarlyView.
The work demonstrates fabrication of Circular Bragg Grating (CBG) cavities with embedded emitters in hBN. The cavities are fabricated around a pre‐characterised quantum emitter. The integrated platform enables light matter interaction and access to brighter emitters and spins in hBN.
James Liddle‐Wesolowski, Otto Cranwell Schaeper, Nathan Coste, Benjamin Whitefield, Evan Williams, Helen Zhi Jie Zeng, Mehran Kianinia, Anastasiia Zalogina, Igor Aharonovich   +8 more
wiley   +1 more source