Results 111 to 120 of about 2,732,015 (387)
Optical detection and modulation at 2µm-2.5µm in silicon [PDF]
, 2014 Recently the 2µm wavelength region has emerged as an exciting prospect for the next generation of telecommunications. In this paper we experimentally characterise silicon based plasma dispersion effect optical modulation and defect based photodetection ...
Ackert, J.J. +7 more
core +1 more source
Improved resolution in extracellular vesicle populations using 405 instead of 488 nm side scatter
Journal of Extracellular Vesicles, 2018 Improvements in identification and assessment of extracellular vesicles (EVs) have fuelled a recent surge in EV publications investigating their roles as biomarkers and mediators of disease.
Mark J. McVey +2 more
doaj +1 more source
Tribology Online, 2013 The effect of lip surface microtopography on lubrication of radial shaft seals is studied numerically. Numerical analysis of hydrodynamic flow at the lip is conducted with a simple sinusoidal wave as a lip surface asperity model.
Hirotaka Mizuta, Joichi Sugimura
doaj +1 more source
Optimum wavelength for long-wavelength LED systems
Electronics Letters, 1983 The bandwidth limitations due to material and modal dispersion are calculated for long-wavelength LED systems using measured attenuation and group delay characteristics for fibres of two different types. The data presented allow the establishment of selection criteria for LEDs used in 140 Mbit/s systems.
openaire +2 more sources
Advanced Engineering Materials, EarlyView.In this study, exciting new bi‐/multi‐linear elastic behavior of soft elastic composites that accompany the activation of wrinkling in the embedded interfacial layers is analyzed. The new features and performance of these composite materials, including dramatic enhancements in energy storage, can be tailored by the concentration of interfacial layers ...
Narges Kaynia +2 more
wiley +1 more source
Continuous wave optical parametric oscillator for quartz-enhanced photoacoustic trace gas sensing [PDF]
, 2007 A continuous wave optical parametric oscillator, generating up to 300 mW idler output in the 3–4 μm wavelength region, and pumped by a fiber-amplified DBR diode laser is used for trace gas detection by means of quartz-enhanced photoacoustic spectroscopy (
A. Henderson +33 more
core +6 more sources
Research of Mine-used Fire Detection System by Use of Fiber Bragg Grating
Gong-kuang zidonghua, 2010 Fiber Bragg grating(FBG) fire detector was packaged by use of a special alloy material.Related temperature sensing experiment showed that temperature sensitivity of the fire detector is(1.755 times) than bare grating,and temperature sensitization was ...
WEI Shi-ming~, CHAI Jing~, XU Li~
doaj
Brain Photobiomodulation—Preliminary Results from Regional Cerebral Oximetry and Thermal Imaging
Medicines, 2019 A new piece of equipment for LED (light emitting diode) brain photobiomodulation is introduced. Preliminary results from regional cerebral oxygen saturation and from thermography are shown before, during and after stimulation.
Gerhard Litscher
doaj +1 more source
Advanced Engineering Materials, EarlyView.The study presents an efficient simulation approach for the polymer laser powder bed fusion process polymers process, validated with polyamide 12, polyamide 6, and polyetherketoneketone. It shows that inter layer time affects part density, with 90s yielding dense parts.
Claas Bierwisch +4 more
wiley +1 more source
Birefringent filter design [PDF]
, 1991 A birefringent filter is provided for tuning the wavelength of a broad band emission laser. The filter comprises thin plates of a birefringent material having thicknesses which are non-unity, integral multiples of the difference between the thicknesses ...
Bair, Clayton H.
core +1 more source