Results 101 to 110 of about 13,205,673 (308)

Subcarrier intensity modulated free-space optical communication systems [PDF]

open access: yes
This thesis investigates and analyses the performance of terrestrial free-space optical communication (FSO) system based on the phase shift keying pre-modulated subcarrier intensity modulation (SIM).
Popoola, Wasiu Oyewole
core  

Genetically Programmed Shape‐Morphing of Engineered Living Materials

open access: yesAdvanced Functional Materials, EarlyView.
Here, bacterial and mammalian engineered living materials (ELMs) are presented, in which living cells direct genetically programmed and enzymatically mediated shape‐morphing. The resulting deformation and shape‐recovery can be actuated in a genetically controlled manner by an ELM incorporating out‐of‐equilibrium counteracting biochemical reactions with
Jan Becker   +7 more
wiley   +1 more source

Signed Optical Quadrature Spatial Modulation in Free Space Optical Communication

open access: yesGuangtongxin yanjiu
【Objective】Aiming at the problems of low spectral efficiency and limited system throughput in Optical Quadrature Spatial Modulation (OQSM), a Signed Optical Quadrature Spatial Modulation (SOQSM) scheme is proposed in Free Space Optical Communication ...
ZHAO Hui   +4 more
doaj  

Free space optical communication based on a multi-wavelength optical phased array using Fresnel reflection

open access: yesApplied Physics Express
We report a coherent laser transmitter for free space optical communications based on multiwavelength coherent beam combining. We performed 5.6 Gbps free-space optical communications using a two-element optical phased array with three wavelengths ...
Eisuke Haraguchi   +6 more
doaj   +1 more source

128 Gbit/s Free-Space Laser Transmission Performance in a Simulated Atmosphere Channel With Adjusted Turbulence

open access: yesIEEE Photonics Journal, 2018
A 128 Gbit/s free-space laser link demonstration has been presented. We use a simulated atmosphere system with a tunable 1 km equivalent weak turbulence channel. Eye diagrams and constellation diagrams were observed.
Xianzhu Liu   +9 more
doaj   +1 more source

Measurements of the Beam-Wave Fluctuations over a 142-km Atmospheric Path [PDF]

open access: yes, 2006
An optical link has been established between the Canary Islands La Palma and Tenerife. A 1064-nm transmitting laser was located on La Palma whereas a BPSK communication receiver and measurement instruments were installed in ESA's OGS on Tenerife.
Perlot, Nicolas   +11 more
core   +1 more source

Sub‐1 ms Optoelectronic Synapse Based on {ZnCdO/ZnO} Multilayer Structure for High‐Speed Neuromorphic Vision Systems

open access: yesAdvanced Functional Materials, EarlyView.
Eu‐doped {ZnCdO/ZnO} structures grown on Si are developed, showcasing dual‐functionality controlled by europium doping. While high europium concentration transforms the device into an ultrafast, self‐powered photodetector, low‐doped structures can be used as an optoelectronic synapse.
Igor Perlikowski   +3 more
wiley   +1 more source

Analog Classification of Human Hand Gestures Exploiting Dendritic Integration With an Organic Artificial Soma

open access: yesAdvanced Functional Materials, EarlyView.
An organic neuromorphic architecture for the classification of human motor behavior is presented and validated. It performs somatic integration by linearly combining the activity from three muscles. An investigation of synaptic weights is presented and discussed in relationship with the classification performance.
Ilenia Sergi   +7 more
wiley   +1 more source

Microfluidic Nano‐Assembly of Red‐Blood‐Cell (RBC) Lipids and Components for Engineering Extracellular Vesicles

open access: yesAdvanced Healthcare Materials, EarlyView.
Engineered red blood cell‐derived extracellular vesicles (eRBCEVs) are synthesized via controlled microfluidic assembly from native RBC lipids, enabling tunable encapsulation of proteins, nucleic acids, nanoparticles, and viral vectors. The platform demonstrates reproducible nanoscale architecture, preserved membrane composition, and functional cargo ...
Chiranth K. Nagaraj   +23 more
wiley   +1 more source

4 m/100 Gb/s Optical Wireless Communication Based on Far L–Band Injection Locked Quantum-Dash Laser

open access: yesIEEE Photonics Journal, 2017
An indoor 100 Gb/s free space optical communication link using an injection locked ∼1621 nm quantum-dash laser has been experimentally demonstrated.
Muhammad Talal Ali Khan   +6 more
doaj   +1 more source

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