Results 21 to 30 of about 36,044 (265)
Terrestrial Free-Space Optical Communications [PDF]
, 2010 Book abstract: Mobile and wireless communications applications have a clear impact on improving the humanity wellbeing. From cell phones to wireless internet to home and office devices, most of the applications are converted from wired into wireless communication.
Ghassemlooy, Zabih, Popoola, Wasiu O.
openaire +2 more sources
Modelling efficient BB84 with applications for medium-range, terrestrial free-space QKD
New Journal of Physics, 2022 Terrestrial free-space (FS) quantum key distribution (QKD) is ideally suited for deployment in dense urban environments. The transition from laboratory to commercial deployment, however, raises a number of important engineering and deployment issues ...
Thomas Brougham, Daniel K L Oi
doaj +1 more source
Sub-micrometre accurate free-form optics by three-dimensional printing on single-mode fibres
Nature Communications, 2016 Combining freeform optics with micro- and nano-optics can permit wavefront shaping, phase engineering, k-space and polarization control. Here, Gissibl et al.
Timo Gissibl +3 more
doaj +1 more source
Free-space-coupled wavelength-scale disk resonators
Nanophotonics, 2022 Optical microresonators with low quality factor (Q$Q$) can be efficiently excited by and scatter freely propagating optical waves, but those with high Q$Q$ typically cannot.
Mirzapourbeinekalaye Babak +4 more
doaj +1 more source
High-Speed Multi-Layer Convolutional Neural Network Based on Free-Space Optics
IEEE Photonics Journal, 2022 Convolutional neural networks (CNNs) are at the heart of several machine learning applications, while they suffer from computational complexity due to their large number of parameters and operations.
Hoda Sadeghzadeh, Somayyeh Koohi
doaj +1 more source
Hybrid POF/VLC Links Based on a Single LED for Indoor Communications
Photonics, 2021 A hybrid fiber/wireless link based on a single visible LED and free of opto-electronic intermediate conversion stages has been demonstrated for indoor communications.
Juan Andrés Apolo +2 more
doaj +1 more source
Engineering Gaussian states of light from a planar microcavity
SciPost Physics, 2018 Quantum fluids of light in a nonlinear planar microcavity can exhibit antibunched photon statistics at short distances due to repulsive polariton interactions.
Mathias Van Regemortel, Sylvain Ravets, Atac Imamoglu, Iacopo Carusotto, Michiel Wouters
doaj +1 more source
Applied SciencesThis paper introduces a Markov-process-based model to analyze the performance of hybrid Free Space Optics and Radio Frequency communication systems. The proposed model captures the dynamic behavior of the link by representing the transitions between ...
Vladimir Shakhov +2 more
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric radiation therapy presents unique challenges compared to adult treatments, including those of immobilization, potential need for sedation, and the critical importance of accurate, reproducible positioning. Additionally, heightened attention to imaging doses is necessary to minimize long‐term toxicity in survivors.
Parham Alaei +17 more
wiley +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Adolescents with haematological malignancies face significant emotional and relational challenges, often accompanied by difficulties in communicating their needs within the healthcare context. To address these issues, a narrative‐based psycho‐educational intervention based on the creation and prescription of Ironic Medications was ...
Marta Stoppa +7 more
wiley +1 more source