Results 71 to 80 of about 3,130,711 (363)
IEEE Photonics JournalFree-space optical communication is an effective alternative solution to address the “last mile” bottleneck in fiber-optic communication systems.
Ziting Pan +6 more
doaj +1 more source
IEEE Photonics Journal, 2021 This paper aims to employ a neural network method of extreme learning machine to solve the problem of laser beam cleanup under the dynamic non-uniform-intensity distribution.
Haiqi Lin +3 more
doaj +1 more source
Optical soliton solutions of the quintic complex Swift-Hohenberg equation [PDF]
Conference Proceeding of Australian Conference on Fibre Optic
Technology 2002, 2002 Using a direct ansatz approach, we have found a number of zero-velocity analytic solutons of the complex quintic Swift-Hohenberg equation. These find application in assorted optical problems.
arxiv +1 more source
The Saccharomyces cerevisiae amino acid transporter Lyp1 has a broad substrate spectrum
FEBS Letters, EarlyView.In Saccharomyces cerevisiae, Yeast Amino acid Transporter family members mediate the import of amino acids, ranging from substrate specialists to generalists. Here, we show that the specialist transporter, Lyp1, has a broader substrate spectrum than previously described, with affinity constants spanning from micromolar to millimolar.
Foteini Karapanagioti +3 more
wiley +1 more source
PhotonicsThe tip–tilt mirror (TTM) is an important component of adaptive optics (AO) to achieve beam stabilization and pointing tracking. In many practical applications, the information of accurate TTM dynamics, complete system state, and noise characteristics is
Sicheng Guo +5 more
doaj +1 more source
Swarm optimization for adaptive phase measurements with low visibility [PDF]
Phys. Rev. A 89, 013838 (2014), 2013 Adaptive feedback normally provides the greatest accuracy for optical phase measurements. New advances in nitrogen vacancy centre technology have enabled magnetometry via individual spin measurements, which are similar to optical phase measurements but with low visibility.
arxiv +1 more source
DNN-based aberration correction in a wavefront sensorless adaptive optics system.
Optics Express, 2019 Existing wavefront sensorless (WFS-less) adaptive optics (AO) generally require a search algorithm that takes lots of iterations and measurements to get optimal results. So the latency is a serious problem in the current WFS-less AO system, especially in
Qinghua Tian +8 more
semanticscholar +1 more source
Entanglement protection of high-dimensional states by adaptive optics [PDF]
New Journal of Physics, 2018 We theoretically study the potential of adaptive optics (AO) to protect entanglement of high-dimensional photonic orbital-angular-momentum (OAM) states against turbulence-induced phase distortions. We demonstrate that AO is able to reduce crosstalk among
Giacomo Sorelli +4 more
semanticscholar +1 more source
FEBS Letters, EarlyView.In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley +1 more source
ARSOD-YOLO: Enhancing Small Target Detection for Remote Sensing Images
SensorsRemote sensing images play a vital role in domains including environmental monitoring, agriculture, and autonomous driving. However, the detection of targets in remote sensing images remains a challenging task. This study introduces innovative methods to
Yijuan Qiu +5 more
doaj +1 more source