Results 21 to 30 of about 3,445,632 (296)
Recent Advances in Coherent Optical Communications for Short-Reach: Phase Retrieval Methods
Photonics, 2023 Short-reach transmission systems traditionally utilize intensity modulation (IM) at the transmitter and direct detection (DD) at the receiver due to their cost-effectiveness, small footprint, and low power consumption.
Abdullah S. Karar +4 more
doaj +1 more source
Using heterogeneous satellites for passive detection of moving aerial target [PDF]
, 2020 Passive detection of a moving aerial target is critical for intelligent surveillance. Its implementation can use signals transmitted from satellites. Nowadays, various types of satellites co-exist which can be used for passive detection.
Chen, Yunfei +5 more
core +1 more source
Photonics, 2023 Direct Detection (DD) optical performance monitoring (OPM), Modulation Format Identification (MFI), and Baud Rate Identification (BRI) are envisioned as crucial components of future-generation optical networks. They bring to optical nodes and receivers a
Muhammad Alrabeiah +3 more
doaj +1 more source
200 Gbps/λ PON Downstream C-Band Direct-Detection Links with ≥29 dB Power Budget
Applied Sciences, 2022 In this paper we present the simulative analysis of a 200 Gbps per wavelength (λ) 8-level pulse amplitude modulation (PAM-8) downstream communication over up to 20 km single mode fiber (SMF) in C-band based on direct detection (DD) achieving at least a ...
Haoyi Wang +5 more
doaj +1 more source
Directional Antineutrino Detection
Physical Review Letters, 2015 We propose the first truly directional antineutrino detector for antineutrinos above the hydrogen inverse beta decay (IBD) threshold, with potential applications including monitoring for nuclear nonproliferation, spatially mapping geo-neutrinos, characterizing the diffuse supernova neutrino background, and searching for new physics in the neutrino ...
Suerfu, Burkhant, Safdi, Benjamin
openaire +5 more sources
Directional axion detection [PDF]
Journal of Cosmology and Astroparticle Physics, 2018 We develop a formalism to describe extensions of existing axion haloscope designs to those that possess directional sensitivity to incoming dark matter axion velocities. The effects are measurable if experiments are designed to have dimensions that approach the typical coherence length for the local axion field.
Knirck, S. +4 more
openaire +3 more sources
Direct detection of WIMPs [PDF]
, 2010 A generic weakly interacting massive particle (WIMP) is one of the most attractive candidates to account for the cold dark matter in our Universe, since it would be thermally produced with the correct abundance to account for the observed dark matter density.
Cerdeño, D.G., Green, A.M.
openaire +4 more sources
Direct detection of dark matter polarizability [PDF]
, 2015 We point out that the direct detection of dark matter via its electro-magnetic polarizability is described by two new nuclear form factors, which are controlled by the 2-nucleon nuclear density. The signature manifests a peculiar dependence on the atomic
Ovanesyan, Grigory, Vecchi, Luca
core +2 more sources
WIMP/NEUTRALINO DIRECT DETECTION [PDF]
International Journal of Modern Physics A, 2004 The most popular candidate for non-baryonic dark matter is the neutralino. More than twenty experiments are dedicated to its direct detection. This review describes the most competitive and promising experiments with different detection techniques. The most recent results are presented with some prospects for the near future.
openaire +2 more sources
On the Direct Detection of Dark Matter Annihilation [PDF]
, 2015 We investigate the direct detection phenomenology of a class of dark matter (DM) models in which DM does not directly interact with nuclei, {but rather} the products of its annihilation do.
Cherry, John F. +2 more
core +3 more sources