نتایج جستجو برای: flashlamp
تعداد نتایج: 135 فیلتر نتایج به سال:
At the HHT experimental area, strongly coupled plasmas are created by the interaction of the SIS heavy ion beams with solid targets. To obtain a high energy deposition in the target, the ion beam is focused by the plasma lens [1] to diameters smaller than 1 mm in the focus. The generated plasmas have densities close to the solid state density, volumes of several mm and temperatures up to 1 eV. ...
Stand-off Raman spectroscopy is a versatile tool for a variety of applications, such as safety investigations, forensics or geosciences. During the project “OPTIX” (FP7) we showed that the detection of small amounts of explosives and hazardous chemicals at distance of 100 m is possible even through opaque containers. Here, we present a different approach to remote Raman sensing employing hypers...
The imaging unit of the novel cloud particle instrument Particle Habit Imaging and Polar Scattering (PHIPS) probe has been developed to image individual ice particles produced inside a large cloud chamber. The PHIPS produces images of single airborne ice crystals, illuminated with white light of an ultrafast flashlamp, which are captured at a maximum frequency of ;5 Hz by a charge-coupled devic...
Background: Rosacea is a chronic inflammatory skin condition associated with four distinct subtypes: erythematotelangiectatic, papulopustular, phymatous, and ocular. Purpose: To review the different kinds of management for all subtypes. Methods: We divided rosacea management into three main categories: patient education, skin care, and pharmacological/procedural interventions. Results: Flushing...
Many naturally occurring substances are intrinsically fluorescent (autofluorescent) when excited with UV or visible wavelengths. Autofluorescence emission typically spans the visible spectrum with a lifetime (?) measured in nanoseconds. Time-resolved fluorescence techniques exploit the large difference in ? that exists between typical autofluorophores and for example, lanthanide chelates (typic...
Pulsed light is an emerging technology that can serve as alternative to current antimicrobial interventions in the food industry. The first objective of this study was define spectrum and energy characteristics pulsed light. second establish germicidal response Escherichia coli, Salmonella enterica subsp. ser. Typhimurium, Listeria monocytogenes, Bacillus cereus (vegetative cells endospores), A...
LLE Review, Volume 71 137 Laser-diode pumping of solid-state laser materials is proving to be much more advantageous over the more conventional technique of flash-lamp pumping. The electrical to optical efficiency of laser diodes is significantly higher than for flash lamps. In addition, the emission wavelength of laser diodes can be chosen to couple efficiently to the absorption band of the la...
BACKGROUND AND OBJECTIVES Both the diagnosis and the treatment of lichenoid dermatosis are often difficult and can be time-consuming. There are now more and more publications about the use of laser systems--especially the flashlamp-pumped pulsed dye laser--in the treatment of inflammatory dermatoses, although the laser's exact mechanism of action in these cases is not yet clear. STUDY DESIGN/...
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