Results 81 to 90 of about 553,597 (280)
Direct optical observation of walls and disclination effects in active photonic devices
, 2009 Liquid crystal tunable Bragg Gratings defined in planar substrates via a laser patterning technique exhibit complex wavelength tuning. This tuning displays threshold points and hysteresis. These tuning features are shown to be a manifestation of physical
Adikan, F.R.M. +7 more
core +1 more source
Size-tunable rhodium nanostructures for wavelength-tunable ultraviolet plasmonics
Nanoscale Horizons, 2016 The localized surface plasmon resonance of Rh nanocubes red-shifts in the UV region with increasing size.
Zhang, Xiao +7 more
openaire +3 more sources
Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study
Advanced Engineering Materials, EarlyView.This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud +7 more
wiley +1 more source
91.1 kW, 5.3 ns compact mid-infrared optical parametric amplification based on PPMgLN
Results in Physics, 2019 We report a compact mid-infrared optical parametric oscillator (OPO) seeded optical parametric amplifier (OPA) based on PPMgLN. The pump for the OPO and OPA is a split 1064 nm electro-optical Q-switched Nd:YAG laser with a pulse width of 11.7 ns and a ...
Liwei Xu, Yingyi Li, Youlun Ju
doaj +1 more source
Long-Distance Multi-Vehicle Detection at Night Based on Gm-APD Lidar
Remote Sensing, 2022 Long-distance multi-vehicle detection at night is critical in military operations. Due to insufficient light at night, the visual features of vehicles are difficult to distinguish, and many missed detections occur.
Yuanxue Ding +5 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Bimetallic (NiFe) and trimetallic (NiFeCr) nanoalloys (NAs) are synthesized using corresponding oxide mixtures using microwave hydrogen plasma within a few milliseconds. The process simultaneously 1) reduces metal oxides to metals; 2) downsizes the particles from micrometers to nanometers; and 3) blends the metals to form NAs.
Sachin Kumar +5 more
wiley +1 more source
Applied Sciences, 2018 Over recent years, much attention has been paid to the performance evaluation of industrial-type burners. The ignition and stable combustion process are of great significance in assessing the quality of burner. The planar laser-induced fluorescence (PLIF)
Jiangbo Peng +5 more
doaj +1 more source
Octave-spanning tunable parametric oscillation in crystalline Kerr microresonators
, 2019 Parametric nonlinear optical processes allow for the generation of new wavelengths of coherent electromagnetic radiation. Their ability to create radiation that is widely tunable in wavelength is particularly appealing, with applications ranging from ...
Bi, Toby +8 more
core +1 more source
The Berkeley tunable far infrared laser spectrometers [PDF]
, 1991 A detailed description is presented for a tunable far infrared laser spectrometer based on frequency mixing of an optically pumped molecular gas laser with tunable microwave radiation in a Schottky point contact diode.
Blake, G. A. +7 more
core +1 more source
Advanced Engineering Materials, EarlyView.The work demonstrates that strategic wall‐thickness grading in diamond triply periodic minimal surface lattices enables precise tuning of deformation and failure behavior under compression. Different gradation patterns guide how and where the structure collapses, improving energy absorption or promoting controlled brittle failure.
Giovanni Rizza +3 more
wiley +1 more source