Results 61 to 70 of about 3,041,832 (288)
Silicon Optical Phased Array with 180-degree Field of View for Solid-State 2D Beam Steering
, 2022 We experimentally demonstrated a silicon optical phased array based on a slab grating and waveguide array with a half-wavelength pitch. 2D beam steering with 180° field of view and low side lobe level
Hu, Hao, Liu, Yong
core +1 more source
Elastic–Plastic Modeling and Experimental Characterization of Granular Jamming Actuators
Advanced Engineering Materials, EarlyView.Granular jamming enables rapid switching between soft and rigid mechanical states. Here, a reduced‐order elastic‐perfectly‐plastic beam framework captures pressure‐dependent loading, unloading, residual deformation, and hysteresis in jammed beams, while matching three‐point bending experiments across materials and geometries. The framework links design
Saheli Patel +2 more
wiley +1 more source
End-fire silicon optical phased array with half-wavelength spacing
APL Photonics, 2018 We demonstrate an optical phased array with emitting elements spaced at half the operational wavelength. The device is a one-dimensional array fabricated on an integrated silicon platform for operation at a wavelength of 1.55 μm.
Michael R. Kossey +2 more
doaj +1 more source
Fast and deterministic optical phased array calibration via pointwise optimisation
Light: Advanced Manufacturing, 2023 Owing to the structural errors in the optical phased array, an initial random phase reduces the quality of the deflection beam. The most commonly applied approach to phase calibration is based on adaptive optics. However, adaptive optimisation approaches
Jingwen Shan +4 more
doaj +1 more source
Broadband Operation of an InP Optical Phased Array
IEEE Photonics Technology Letters, 2022 We demonstrate the broadband operation and beam calibration over 70nm tuning range of an optical phased array (OPA) fabricated in a generic InP photonic integration platform, which enables multi-wavelength OPA operation. The broadband performance was demonstrated on an 8-channel OPA, whose calibration and phase modulator characterization were executed ...
M. Gagino +4 more
openaire +2 more sources
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 +9 more
wiley +1 more source
Compact optical phased array using a serial grating antenna design
, 2019 We propose an on-chip Si photonics optical phased array based on a serial grating design which eliminates the use of directional couplers in previous designs. It significantly reduces overall phased array size especially when the number of the antenna is
Lingxuan Zhang (4586374) +5 more
core +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
1000-Element Silicon Optical Phased Array for Aliasing-Free 2D Optical Beam Steering
, 2022 We experimentally demonstrated a 1000-element silicon optical phased array based on a slab grating and half-wavelength-spacing waveguide array. A large beam steering range of >140° and a small beam divergence of 0.16° were achieved.
Meng, Xiansong, Hu, Hao, Liu, Yong
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