Results 171 to 180 of about 5,760,414 (306)
Performance investigation of 160 Gb/s inter-satellite laser communication transmission system based on OFDM and PDM transmission with advanced signal processing techniques. [PDF]
Sci RepArmghan A +6 more
europepmc +1 more source
Advanced Optical Materials, EarlyView.Nearly hyperuniform disordered photonic slabs guide light along prescribed freeform pathways without relying on lattice symmetry. A pathway‐first design embeds curved channels within a photonic bandgap hyperuniform network, maintaining high transmission through freeform bends.
Timothy Amoah +8 more
wiley +1 more source
Computer vision-based laser communication system for robust optical beam tracking and alignment. [PDF]
Sci RepLi S.
europepmc +1 more source
Advanced Optical Materials, EarlyView.This work augments two‐photon polymerization with point‐wise dose control, enabling structures with heterogeneous material properties such as refractive index. An open source toolbox and superior calibration methodology for the refractive index pave the way for bio‐mimicking or numerically optimized structure designs, and enhance the synergy between 3D
Michał Ziemczonok, Koen Vanmol
wiley +1 more source
Advanced Optical Materials, EarlyView.This work presents an electrically controllable approach to spin–valley polarization in monolayer WS2 by integrating it with a dual‐mode liquid crystal laser. Applying an external field triggers phase transitions that switch the laser emission between helicity‐defined band‐edge lasing and unpolarized random lasing.
Yu‐Chuan Tsao +3 more
wiley +1 more source
Design of Network Service Transmission with LDPC Coding in Space Laser Communication
Guangtongxin yanjiu【Objective】Affected by factors such as atmospheric attenuation and atmospheric turbulence, wireless laser communication will produce a certain degree of bit error, and it is often necessary to add error correction codes to improve the signal transmission
ZHANG Xiaole, TAN Xiaochuan, LI Zhe
doaj
Modeling and Simulation of Inter-Satellite Laser Communication for Space-Based Gravitational Wave Detection. [PDF]
Sensors (Basel)Liang H, Yi Z, Ling H, Luo K.
europepmc +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 +5 more
wiley +1 more source
Advanced Optical Materials, EarlyView.Helicity‐dependent all‐optical magnetization switching was demonstrated for the Bi‐ and Ga‐substituted rare‐earth (R) iron garnet crystal thin films (Bi,Ga:RIG; R = Eu3+, Nd3+, and Y3+). The efficiency followed the order EIG > NIG > YIG. These results show the correlation between 4f orbital moment (4f〈L〉) of R3+ and helicity‐dependent optical ...
Ayumu Hata +7 more
wiley +1 more source
Germanium Crystal Undulator Realization through Pulsed Laser Melting Technique
Crystal-based undulators are breakthrough devices for developing new gamma-ray light sources. Operating at photon energies ranging from 100 keV to several tens of MeV, they offer a promising approach to high-brilliance gamma-ray generation. By exploiting
Francesco Sgarbossa +7 more
core