Results 61 to 70 of about 246,836 (290)
Performance of BPSK subcarrier intensity modulation free-space optical communications using a log-normal atmospheric turbulence model [PDF]
, 2010 In this paper, we present simulation results for the bit error rate (BER) performance and the fading penalty of a BPSK - subcarrier intensity modulation (BPSK-SIM) free-space optical (FSO) communication link in a log-normal atmospheric turbulence model ...
Ghassemlooy, Zabih +6 more
core +2 more sources
Chiral Metal Halide Perovskites for Spin‐Polarized Light‐Emitting Diodes
Advanced Materials, EarlyView.Chiral metal–halide perovskites offer a route to circularly polarized light without external polarizers. This Perspective compares two spin‐light emitting diode concepts: intrinsically chiral emissive layers and chiral spin‐filter interlayers that inject spin‐polarized carriers into efficient achiral emitters.
Ashish Gaurav +8 more
wiley +1 more source
High speed short range optical wireless ground-to-train communications [PDF]
, 2010 There is a huge demand for seamless high-speed communications in fast moving trains. People want broadband services while on board as in their home or in the workplace.
Ghassemlooy, Zabih +3 more
core
Anti‐Slip Material‐Based Strategies and Approaches
Advanced Materials Technologies, EarlyView.This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani +3 more
wiley +1 more source
Free space laser telecommunication through fog
, 2018 Atmospheric clearness is a key issue for free space optical communications (FSO). We present the first active method to achieve FSO through clouds and fog, using ultrashort high intensity laser filaments.
Kasparian, Jérôme +4 more
core +2 more sources
All-optical retro-modulation for free-space optical communication
Optics Express, 2018 This work presents device and system architectures for free-space optical and optical wireless communication at high data rates over multidirectional links. This is particularly important for all-optical networks, with high data rates, low latencies, and network protocol transparency, and for asymmetrical networks, with multidirectional links from one ...
Brandon, Born +3 more
openaire +2 more sources
Advanced Materials Technologies, EarlyView.Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu +8 more
wiley +1 more source
A 20-m/40-Gb/s 1550-nm DFB LD-Based FSO Link
IEEE Photonics Journal, 2015 An innovative free-space optical (FSO) link using laser light propagation to achieve transmission rate of 40 Gb/s at a wavelength of 1550 nm is proposed and experimentally demonstrated.
Wen-Shing Tsai +6 more
doaj +1 more source
Performance of free space optical communication using M-array receivers at atmospheric conditions [PDF]
, 2009 : In free space optical (FSO) communication links, atmospheric parameters including absorption, scattering and turbulence have significant impacts on the quality of laser beams propagating through the atmosphere.
Ahmadi, Vahid +2 more
core +1 more source
Smart Closed‐Loop Systems in Personalized Healthcare: Advances and Outlook
Advanced Materials Technologies, EarlyView.A smart closed‐loop e‐textile integrates multimodal sensing, onboard processing, wireless communication, and wearable power to enable real‐time physiological/biochemical monitoring and feedback‐controlled therapy. ABSTRACT Smart textiles represent a revolutionary frontier in healthcare, seamlessly blending fabric and advanced technologies to create ...
Safoora Khosravi +12 more
wiley +1 more source