Results 71 to 80 of about 967,322 (299)

High-quality electro-optic beam steering

Opto-Electronic Advances
Optical beam steering is essential for free-space optical communication, light detection and ranging (LiDAR) and other fields. Thin-film lithium niobate (TFLN), as an efficient integrated photonics platform, offers strong electro-optic (EO) effect, low ...
Zhizhang Wang, Tao Li
doaj   +1 more source

Solar tracking using beam-steering lens arrays [PDF]

, 2018
Conventional tracking solar concentrators track sunlight by rotating the concentrator optics to face the sun, which adds to the cost and bulk of the system. Beam-steering lens arrays, in contrast, allow solar tracking without bulk rotation of the optics.
Torgersen, Jan, Aksnes, Astrid, Johnsen, Håkon Jarand Dugstad   +2 more
core   +1 more source

Mitigating Creep Anisotropy and Enhancing Performance in Additively Manufactured Ni‐Based Superalloys: A Review

Advanced Engineering Materials, EarlyView.
Additive manufacturing introduces pronounced microstructural and crystallographic anisotropy in Ni‐based superalloys, resulting in orientation‐dependent creep deformation and damage. This review identifies the key microstructural origins of creep anisotropy, examines their influence on dominant deformation mechanisms, and highlights processing ...
Chandan Kumar, Shobhit Pratap Singh, Gaurav Mohanty, Praveen Kumar   +3 more
wiley   +1 more source

Monolithically Integrated VCSEL Beam Scanner with Slow-Light Amplifiers for Solid-State LiDAR

Photonics
The rapidly increasing demand for compact, high-performance beam-steering solutions in LiDAR systems has driven substantial advances in vertical-cavity surface-emitting laser (VCSEL) technologies.
Ahmed Hassan, Xiaodong Gu, Fumio Koyama
doaj   +1 more source

Miniature Nonmechanical Beam Deflector Based on Bragg Reflector Waveguide With a Number of Resolution Points Larger Than 1000

IEEE Photonics Journal, 2012
A compact and super-high-resolution beam steering device is demonstrated using a Bragg reflector waveguide. For 37-nm tuning in input wavelengths, we obtained a continuous beam steering angle of 60°.
X. Gu, T. Shimada, A. Matsutani, F. Koyama   +3 more
doaj   +1 more source

Electrodeposition in Structural Lattices of Variable Architectures

Advanced Engineering Materials, EarlyView.
Electrodeposition enables geometry‐sensitive, autonomous void filling while simultaneously tuning chemical and mechanical properties. The development of approaches that can autonomously fill and heal material voids and yield composites with tailorable properties is increasingly relevant in engineering.
Yeong‐Man Kwon, Jingwen Zhang, Guido Musso, Alessandro F. Rotta Loria   +3 more
wiley   +1 more source

Planar-lens Enabled Beam Steering for Chip-scale LIDAR

, 2018
© 2018 OSA. A lens-enabled chip-scale beam steering device for LIDAR is theoretically analyzed and experimentally demonstrated with azimuthal, φrange = 38.8°, and polar, θrange = 12.0°, beam-steering.
Skirlo, Scott A., Marin Soljačić, Paul Juodawlkis, Dave Kharas, Cheryl Sorace-Agaskar, Scott A. Skirlo, Sloan, Jamison, Jeffrey Herd, Josué J. López, López, Josué J., Sorace-Agaskar, Cheryl M., Herd, Jeffrey S., Kharas, Dave, Herd, Jeffrey, Juodawlkis, Paul W., Jamison Sloan, Juodawlkis, Paul, Soljačić, Marin, Sorace-Agaskar, Cheryl   +18 more
core   +1 more source

Impact of Hydrogen Incorporation on Electronic and Magnetic Structure of X2CrNi18‐9 Stainless Steel

Advanced Engineering Materials, EarlyView.
Hydrogen uptake in austenitic stainless steel alters both its electronic and magnetic structure. Seebeck measurements reveal hydrogen‐induced shifts in the electronic density of states, while neutron scattering uncovers nanoscale inhomogeneities that grow upon hydrogen incorporation, with the most pronounced effect observed in the PBF as‐built state ...
Torben Tappe, Louis Becker, Gaurav Kanu, Thomas F. Headen, Dirk Honecker, Gabi Schierning, Santiago Benito, Sebastian Weber, Klara Lünser, Sabrina Disch   +9 more
wiley   +1 more source

Beam steerable MIMO antenna based on conformal passive reflective metasurface for 5G millimeter wave applications

Scientific Reports
A conformal reflective metasurface fed by a dual-band multiple-input multiple-output (MIMO) antenna is proposed for low-cost beam steering applications in 5G Millimeter-wave frequency bands.
Bilal Tariq Malik, Shahid Khan, Slawomir Koziel   +2 more
doaj   +1 more source

Wearable Fabric Reconfigurable Beam-Steering Antenna for On/Off-Body Communication System

International Journal of Antennas and Propagation, 2015
This paper presents a comparison of on-body performances between omnidirectional (loop antenna) and reconfigurable beam-steering antennas. Both omnidirectional and reconfigurable antennas were manufactured on the same fabric substrate and operated at the
Seonghun Kang, Chang Won Jung
doaj   +1 more source