Results 71 to 80 of about 7,914 (285)
Gallium Arsenide Optical Phased Array Photonic Integrated Circuit
, 2023 A 16-channel optical phased array is fabricated on a gallium arsenide photonic integrated circuit platform with a low-complexity process. Tested with a 1064 nm external laser, the array demonstrates 0.92{\deg} beamwidth, 15.3{\deg} grating-lobe-free ...
Nickerson, Michael +5 more
core +1 more source
Advanced Engineering Materials, EarlyView.A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi +3 more
wiley +1 more source
Target recognition techniques for multifunction phased array radar
, 2010 This thesis, submitted for the degree of Doctor of Philosophy at University College London, is a discussion and analysis of combined stepped-frequency and pulse-Doppler target recognition methods which enable a multifunction phased array radar designed
French, A.
core
Graphene-based fine-tunable optical delay line for optical beamforming in phased-array antennas [PDF]
, 2016 The design of an integrated graphene-based fine-tunable optical delay line on silicon nitride for optical beamforming in phased-array antennas is reported.
CIMINELLI, Caterina +4 more
core +1 more source
Integrated optical phased array
, 2023 The present disclosure relates to an integrated optical phased array (OPA) with a large field of view (FOV), possibly up to 180 degrees FOV. One embodiment regards a chip integrated optical phased array, comprising: a phase shifter array having N input light channels and configured for tuning the phase of the N input light channels; a beam splitter ...
Liu, Yong; id_orcid 0000-0001-9051-909X +1 more
openaire +1 more source
Advanced Functional Materials, EarlyView.Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner +14 more
wiley +1 more source
Design of high frequency ultrasonic array transducers for medical imaging
, 2011 Ultrasonic transducers have been widely used in the medical applications. High frequency array transducers have recently attracted many research interests, since it provides not only the electronic beamforming but also the very fine image resolution. The
Qian, Yichen
core
Advanced Functional Materials, EarlyView.ABSTRACT Electronic waste has emerged as a major environmental challenge, driven by the massive consumption and a limited lifetime of modern electronic devices, stimulating the development of sustainable electronics. Here, an all‐biomaterial gelatin‐choline‐citric acid ([Ch][CA]) ionogel is developed as an active binder to realize self‐sintered ...
Lin Guo +10 more
wiley +1 more source
A phased antenna array for surface plasmons [PDF]
, 2016 Surface plasmon polaritons are electromagnetic waves that propagate tightly bound to metal surfaces. The concentration of the electromagnetic field at the surface as well as the short wavelength of surface plasmons enable sensitive detection methods and ...
Prangsma, Jord +4 more
core +1 more source
Chirped lens array LED spot array generator with individually colored spots
, 2022 Paper 771617State-of-the-art high brightness LEDs offer optical powers of about one watt and span a wide wavelength range - clearly outperforming usual single mode laser diodes.
Wippermann, F. +2 more
core +1 more source