Results 31 to 40 of about 11,088,671 (294)

Electro optical tuning of Tamm-plasmon exciton-polaritons [PDF]

open access: yes, 2014
This work was financially supported by the state of Bavaria, the bilateral project of the Deutsche Forschungsgemeinschaft (within the project LIEPOLATE) and the Polish Ministry of Science and higher education (Project No.
Gessler, J.   +7 more
core   +1 more source

AI-based defect detection and self-healing in metal additive manufacturing

open access: yesVirtual and Physical Prototyping
This pilot study develops a process to evaluate in-situ defect detection and self-healing in Ti-6Al-4V fabricated using laser-based powder bed fusion.
Jan Akmal   +9 more
doaj   +1 more source

Electro-optics of confined systems

open access: yesJournal of Colloid and Interface Science
Confinement in microenvironments occurs in many natural systems and technological applications. However, little is known about the behaviour of the immersed nanoparticles. In this work we show that their diffusion, electro-orientation and electric field induced polarization can be determined through electric birefringence experiments.
Ana Cazorla   +3 more
openaire   +3 more sources

Optical High-Capacity Satellite Downlinks via High-Altitude Platform Relays [PDF]

open access: yes, 2007
Earth-observation (EO) satellite missions produce a large amount of data using high-resolution optical or radar sensors. During the last decades the amount of data has steadily increased due to improved sensor technologies with increased temporal ...
Florian Moll   +13 more
core   +1 more source

Electro-Optical Modulator Requirements for 1 Tb/s per Channel Coherent Systems

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications, 2021
The electro-optical bandwidth and extinction ratio requirements of in-phase and quadrature modulators to enable 1 Tb/s per channel optical transmission rates are evaluated through numerical simulations.
Sandro Marcelo Rossi   +3 more
doaj   +1 more source

Influence of laser beam shape and post heat-treatment on the microstructure and mechanical properties of nickel-based alloy IN718 manufactured by laser powder bed fusion

open access: yesJournal of Materials Research and Technology
This study examines the effect of Gaussian and ring-shaped laser beam profiles on the microstructural development and mechanical properties of the PBF-LB/M processed nickel-based alloy Inconel 718 in its as-built and post-heat-treated conditions.
Matjaž Godec   +11 more
doaj   +1 more source

Electro-optical sensor with automatic suppression of laser dazzling

open access: yes, 2012
Paper 85410PThe progress in laser technology leads to very compact but nevertheless powerful laser sources. In the visible and near infrared spectral region, lasers of any wavelength can be purchased.
B. Eberle   +3 more
core   +1 more source

On the effect of building platform material on laser-powder bed fusion of a Ni-base superalloy HAYNES® 282®

open access: yesEuropean Journal of Materials, 2022
Additive manufacturing (AM) by laser powder bed fusion (LPBF) involves melting of layers of powder onto a substrate, called a building platform. Due to cost or convenience considerations, building platform materials rarely match the LPBF material ...
Abdul Shaafi Shaikh   +3 more
doaj   +1 more source

Integration of OpenCV‐Based Microscopic Adhesive Volume Measurement Into a Pyiron Workflow for Automated Data Analysis

open access: yesAdvanced Engineering Materials, EarlyView.
Residual adhesive after electrode loading in adhesive‐assisted resistance spot welding is quantified through a traceable experimental‐to‐digital workflow. Chromatic confocal topography provides calibrated surface‐height data, while OpenCV detects the electrode imprint and integrates adhesive height into comparable volume metrics.
Sung‐Min Wi, Jiangdong Zhao
wiley   +1 more source

Design of programmable multi-wavelength tunable filter on lithium niobate

open access: yesResults in Physics, 2019
Tunable optical filters have a wide range of applications, especially in optical sensing systems and optical communication systems. In this letter, a programmable multi-wavelength tunable filter on Lithium Niobate (LN) is designed.
Yuan Yao   +6 more
doaj   +1 more source

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