Results 41 to 50 of about 7,051,583 (352)
Nature Communications, 2017 Scalable and sustainable solar hydrogen production through photocatalytic water splitting requires highly active and stable earth-abundant co-catalysts to replace expensive and rare platinum.
J. Ran +5 more
semanticscholar +1 more source
Normal and Visibility Estimation of Human Face from a Single Image [PDF]
arXiv, 2022 Recent work on the intrinsic image of humans starts to consider the visibility of incident illumination and encodes the light transfer function by spherical harmonics. In this paper, we show that such a light transfer function can be further decomposed into visibility and cosine terms related to surface normal.
arxiv
High visibility temporal ghost imaging with classical light [PDF]
Optics Communications, 410, 824 (2018), 2017 High visibility temporal ghost imaging with classical light is possible when superbunching pseudothermal light is employed. In the numerical simulation, the visibility of temporal ghost imaging with pseudothermal light equaling ($4.7\pm 0.2$)\% can be increased to ($75\pm 8$)\% in the same scheme with superbunching pseudothermal light.
arxiv +1 more source
On-chip optical parametric oscillation into the visible: generating red, orange, yellow, and green from a near-infrared pump [PDF]
Optica 7,1417-1425 (2020), 2020 Optical parametric oscillation (OPO) in a microresonator is promising as an efficient and scalable approach to on-chip coherent visible light generation. However, so far only red light at < 420 THz (near the edge of the visible band) has been reported.
arxiv +1 more source
Visible‐Light Responsive TiO2‐Based Materials for Efficient Solar Energy Utilization
Advanced Energy Materials, 2020 The photocatalytic properties of TiO2 have aroused a broad range of research interest since 1972 due to its abundance, chemical stability, and easily available nature.
Wei Zhang +9 more
semanticscholar +1 more source
Design for The Indoor Visible Light Communication Application System Based on LED Visible Light
MATEC Web of Conferences, 2017 This paper designs an indoor visible light communication application system based on LED. The system can modulate the original signal one or more times, move to a specific frequency band, transmit on the power line, in the LED terminal use this module to
Lian Wenyu +4 more
doaj +1 more source
GaN-Based Generic Bifunction LED for Potential Duplex Free-Space VLCs
IEEE Photonics Journal, 2017 A generic bifunction GaN light-emitting diode (LED) structure, which has a 300 nm n+-ZnO epitaxial layer grown on a standard GaN LED epistack and a mesa size of 200 μm × 600 μm, exhibits a peak responsivity of 450 mA/W to purple ...
Lilin Liu +5 more
doaj +1 more source
DRL-Based IRS-Assisted Secure Visible Light Communications
IEEE Photonics Journal, 2022 In this paper, we develop a novel Physical Layer Security (PLS) technique for a Visible Light Communication (VLC) system composed of light fixtures assisted by mirror array sheets serving as Intelligent Reflecting Surfaces (IRS).
Danya A. Saifaldeen +3 more
doaj +1 more source
High-visibility multi-photon interference of Hanbury Brown - Twiss type for classical light [PDF]
, 2008 Difference-phase (or Hanbury Brown - Twiss type) intensity interference of classical light is considered in higher orders in the intensity. It is shown that, while the visibility of sum-phase (NOON-type) interference for classical sources drops with the order of interference, the visibility of difference-phase interference has opposite behavior.
arxiv +1 more source
Zero power light labeling based on visible light communication
Dianxin kexue, 2023 In order to achieve zero energy consumption of visible light labels, MATLAB and MULTISIM were used to simulate the impedance matching of the receiver, matching the input impedance of the first-order equalization circuit with the internal resistance of ...
Tianyang MA, Xiongbin CHEN, Yiwu XU
doaj +2 more sources