Results 41 to 50 of about 2,620,500 (282)
Photonic wideband phased array: an optical time steered antenna based on a new true time delay unit [PDF]
, 2006 L’attività di ricerca svolta durante il corso di dottorato e descritta dettagliatamente all’interno della tesi è stata diretta al progetto di una innovativa rete ottica di formazione del fascio per antenne a schiera a banda larga esenti dal fenomeno del ...
Curcio, Claudio
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Ray-optical refraction with confocal lenslet arrays [PDF]
, 2008 Two parallel lenslet arrays with focal lengths f1 and f2 that share a common focal plane (that is, which are separated by a distance f1+f2) can refract transmitted light rays according to Snell's law, but with the 'sin's replaced with 'tan's. This is the
Courtial, J.
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DDPG-Based Beamforming Optimization for Optical Phased Arrays
IEEE Photonics JournalTo address the limited beam optimization capability of conventional methods in optical phased arrays, this paper proposes a beam optimization method based on the deep deterministic policy gradient (DDPG) algorithm.
Dongyang Jiang +6 more
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High-Speed Optical-Beam Scanning by an Optical Phased Array Using Electro-Optic Polymer Waveguides
IEEE Photonics Journal, 2020 Optical phased arrays (OPAs), which manipulate an optical beam by controlling the phase of light, are optical devices characterized by high speed, small size, light weight, and high reliability that make various applications possible.
Yoshikuni Hirano +7 more
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Directed evolution of enzymes at the crossroads of tradition and innovation
FEBS Open Bio, EarlyView.An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova +2 more
wiley +1 more source
3D-Printed Facet-Attached Optical Elements for Beam Shaping in Solid-State Phased Arrays
, 2022 We demonstrate solid-state optical phased arrays exploiting 3D-printed facet-attached freeform elements for shaping and deflection of an edge-emitted beam to a surface-normal direction.
Yilin Xu +21 more
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Implantable silicon neural probes with nanophotonic phased arrays for single-lobe beam steering
Communications EngineeringIn brain activity mapping with optogenetics, patterned illumination is crucial for targeted neural stimulation. However, due to optical scattering in brain tissue, light-emitting implants are needed to bring patterned illumination to deep brain regions ...
Fu-Der Chen +14 more
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FEBS Open Bio, EarlyView.KDAC6 has been associated with cell motility and actin structures, but specific domain contributions are not established. The two catalytic domains have differential effects on motility and F‐actin regulation, affecting cortical F‐actin density, motility, stress fibers, and cell spreading.
Taylor V. Joseph +7 more
wiley +1 more source
The Review of Beamforming Technology Based on Optical True Time Delay Line
天地一体化信息网络, 2022 The important role satellite communications plays in next-generation communication protocols brings both opportunities and challenges.Beamforming is an essential technology for effi cient and fl exible utilization of onboard resources.To explored a ...
Shiyi XIA, Guotong LI
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Photonics, 2023 Optical phased arrays (OPAs) have great potential in the fields of integrated solid-state light detection and ranging. The ranging distance of an OPA can be further enlarged by improving the directionality of the grating antenna.
Jinmei Wei +6 more
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