Results 101 to 110 of about 2,620,500 (282)
Optical Beamforming For Ultrasonic Phased Arrays
, 1995 Low-cost, lightweight, and compact optical beamforming techniques for ultrasonic phased arrays are described. The use of a pair of tiny stamp-size low cost nematic liquid crystal 2D optical array devices for the transducer control sites allows compact ...
Riza, Nabeel A.
core
Large-scale MEMS-actuated 2-D optical phased arrays
, 2018 We report on a novel two-dimensional (2-D) optical phased arrays with 25,600 addressable phase shifters made of diffraction gratings with in-plane movement. The phase shift is independent of wavelength, and only depends on the displacement of the grating.
Youmin Wang +7 more
core +1 more source
Micro-optical phased arrays for spatial and spectral switching
, 2002 This article describes two optical devices based on linear arrays of micromirrors. The first is a phased array of micromirrors that can be rotated as well as translated vertically to maintain coherence across the array. We demonstrate experimentally that
Yu, Kyoungsik +4 more
core +1 more source
Advanced Functional Materials, EarlyView.For the first time, an extreme‐thick laser‐arc PVD ta‐C (DLC) coating exceeding 100 µm is demonstrated, opening up new possibilities for ultra‐high load bearing capacity. This superhard amorphous carbon architecture combines >50% sp3 bonding, robust adhesion and self‐supporting performance, shielding substrates from plastic flow under extreme contact ...
Martin Zawischa +3 more
wiley +1 more source
Feasibility study of integrated optical phased arrays for indoor Gb/s wireless optical links
, 2009 Link budget calculations are performed to study the potential of integrated optical phased arrays for Gb/s wireless links.
Baets, Roel +2 more
core
Nanophotonics, 2017 Technologies for efficient generation and fast scanning of narrow free-space laser beams find major applications in three-dimensional (3D) imaging and mapping, like Lidar for remote sensing and navigation, and secure free-space optical communications ...
Heck Martijn J.R.
doaj +1 more source
The Effect of Hydrophilic Headgroup Chemistry on Peptoid‐Directed Mineralization of CaCO3
Advanced Functional Materials, EarlyView.Amphiphilic peptoids alter the pathway and outcome of calcium carbonate crystallization, which progresses through amorphous calcium carbonate (ACC) to vaterite to calcite rhombs in the absence of peptoids. In contrast, amine‐terminated peptoids produce vaterite disks and carboxyl‐terminated peptoids produce calcite mesocrystals.
Biao Jin +5 more
wiley +1 more source
Optoelectronic Infrastructure for Radio Frequency and Optical Phased Arrays [PDF]
, 2015 Optoelectronic integrated circuits offer radiation-hardened solutions for satellite systems in addition to improved size, weight, power, and bandwidth characteristics. ODIS, Inc., has developed optoelectronic integrated circuit technology for sensing and
Cai, Jianhong
core
Advanced Functional Materials, EarlyView.Further advances in applications can be anticipated through the development of unique and functional materials beyond conventional alloys. Nitrogen enables tailor‐made orbital textures in various transition‐metal hosts, paving the way for devices ranging from spintronics memory to artificial intelligence hardware.
Prabhat Kumar +3 more
wiley +1 more source
Photonic Integrated Circuits for an Optical Phased Array
PhotonicsOptical phased arrays (OPAs) are renowned for their exceptional ability to manipulate and direct light beams, positioning them as an ideal choice for solid-state light detection and ranging (LiDAR) technologies.
Yasha Yi +5 more
doaj +1 more source