Results 41 to 50 of about 2,894,233 (286)
A review of research on optical true time delay technology
Journal of the European Optical Society-Rapid PublicationsLight controlled phased array has the advantages of fast response speed, compact system, diverse functions, and flexible control, and has been widely applied in many scientific and technological fields.
An Ting +4 more
doaj +1 more source
A Design Method of Optical Phased Array With Insufficient Phase Tuning Range
IEEE Photonics Journal, 2020 Optical phased array (OPA) can achieve beam steering by controlling the phase distribution of each channel. In traditional OPA, 2π phase tuning range is required to achieve beam steering.
Bo Yang +3 more
doaj +1 more source
Applied Physics ExpressWe report a coherent laser transmitter for free space optical communications based on multiwavelength coherent beam combining. We performed 5.6 Gbps free-space optical communications using a two-element optical phased array with three wavelengths ...
Eisuke Haraguchi +6 more
doaj +1 more source
Integrated optical phased array: Challenges and future trends [PDF]
APL PhotonicsIntegrated optical phased arrays (OPAs) enable precise, non-mechanical beam steering and have emerged as promising technology for various applications for applications spanning LiDAR, free-space optical communication, and biomedical imaging.
Yong Liu, Zhenli Dong, Hao Hu
doaj +1 more source
Spatial biology in cancer epigenetics
Molecular Oncology, EarlyView.Spatial epigenomics combines molecular profiling with tissue architecture to reveal how gene regulation is organized within intact tissues. In cancer, these technologies uncover the mechanisms driving tumor heterogeneity and microenvironmental interactions, opening new opportunities for biomarker discovery and precision medicine.
Eva Crespo‐García, Manel Esteller
wiley +1 more source
TECHNIQUES AND INSTRUMENTATION FOR PHASED ARRAY CALIBRATION [PDF]
, 2020 Active phased arrays suffer the inherent problem of excitation errors, i.e., incorrect phase and amplitude excitation of the antenna elements. Excitation errors degrade critical performance parameters since they increase sidelobe level and reduce antenna
Lebron Garcia, Rodrigo
core
Photonic Approach to Phased Array Application [PDF]
Radioengineering, 2021 Many applications, including phased array antennas, require a significant and tunable time delay, which pure electrical methods cannot establish. A variable microwave true-time delay line utilizing a photonic approach is presented in this paper.
E. Udvary
doaj
A Review of Semiconductor-Based Monolithic Optical Phased Array Architectures
IEEE Open Journal of the Solid-State Circuits Society, 2021 Semiconductor-based monolithic optical phased arrays (OPA) enable optical beam-steering for lidar and 3D imaging, free-space optical communications, projection and 3D holographical displays, and neural probes among many other possible applications.
Hossein Hashemi
doaj +1 more source
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
A low profile radiating element with nearly hemispheric coverage for satellite communications on-the-move hybrid array antenna [PDF]
, 2010 A novel design solution of a dual-linearly polarised Ku-band low-profile radiating element for low elevation angle coverage (down to 10° above horizon) is presented. Such an element is suitable for full-duplex Satellite Communications On-The-Move (SCOTM)
Yuanyuan Jiang +7 more
core +1 more source