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Raman microspectroscopy is a laboratory technique used to produce molecular fingerprints of materials and biological specimens. However, to date, fluorescence has interfered with effective application...
UMD Physicists Discover “Smoke Rings” Made of Laser Light（图）
UMD Physicists Smoke Rings Laser Light
2016/9/29
Most basic physics textbooks describe laser light in fairly simple terms: a beam travels directly from one point to another and, unless it strikes a mirror or other reflective surface, will continue t...
A human skull, on average, is about 0.3 inches thick, or roughly the depth of the latest smartphone. Human skin, on the other hand, is about 0.1 inches, or about three grains of salt, deep.While these...
Diagrammatic pump-probe approach to coherent backscattering of laser light by cold atoms: Double scattering revisited
Diagrammatic pump-probe coherent backscattering of laser light cold atoms Double scattering revisited Atomic Physics
2012/4/20
We present a diagrammatic derivation of the coherent backscattering spectrum from two two-level atoms using the pump-probe approach, wherein the multiple scattering signal is deduced from single-atom ...
Application of elastic mid-IR-laser-light scattering for non-destructive inspection in microelectronics
mid-IR-laser-light scattering non-destructive inspection microelectronics
2011/9/9
Some possible applications of the low-angle mid-IR-light scattering technique and some recently developed on its basis methods for non-destructive inspection and investigation of semiconductor materia...
Introduction of a Dye into Plant Cells and their Morphological Changes by a Laser Light
Cell perforation Damaged spot Dye Laser Scanning electron microscopy
2009/8/6
Introduction of a Dye into Plant Cells and their Morphological Changes by a Laser Light.
Determination of Polydispersity of a Human Colonic Mucus Glycoprotein Using Rate-Zonal Centrifugation and Laser Light-Scattering
Polydispersity colonic mucins rate-zonal centrifugation light-scattering
2009/6/25
The colonic epithelium is coated by a visco-elastic gel, mucus that lubricates and protects the mucosa from the external environment. Mucus glycoproteins (mucins, MUCs) are major macromolecular compon...
Preface to Topical Papers on Laser Light Control Technology by Periodically-Poled Ferroelectrics
Laser Light Control Technology Periodically-Poled Ferroelectrics
2009/6/8
Preface to Topical Papers on Laser Light Control Technology by Periodically-Poled Ferroelectrics.
Laser light-scattering study of the toxic effects of methylmercury on sperm motility
methylmercury spermatozoa motility Macaca fasicularis laser light-scattering
2009/2/23
An in vitro study was designed using the laser light-scattering technique to obtain further information on the dose-effect relationship of methylmercury on sperm motility. The technique provided a q...
Bond strengths of two ceramic brackets using argon laser, light, and chemically cured resin systems
Bond strength Ceramic brackets Resin Argon laser
2009/1/8
The present study compared tooth-bracket bond strengths using two types of ceramic brackets and three methods of polymerization: argon laser, conventional light, and chemical. Ninety extracted hum...
Concentration of free radicals in faba bean seeds after the pre-sowing treatment of the seeds with laser light
laser bio-stimulation of seeds faba bean free radicals Electron Paramagnetic Resonance
2008/11/26
Science and Plant Cultivation in Puławy, the Agricultural University and University of Maria Curie-Skłodowska in Lublin. The first row factor were three morphologically differentiated white ...
Influence of laser light on leaf area and parameters of photosynthetic activity in DH lines of spring barley (Hordeum vulgare L.)
laser light blade area photosynthetic activity barley
2008/11/18
The initial material for performed studies was constituted by hull and hull-less DH lines of spring barley (Hordeum vulgare L.). The kernels were irradiated with helium-neon laser (He-Ne) in red light...
Morphological changes and yield of selected species of leguminous plants under the influence of seed treatment with laser light
laser beam leguminous plants emergence yield
2008/11/13
Field and pot experiments were carried out between 1998 and 2000. The factors of the 1st order were faba bean and white lupine varieties, and the factors of the 2nd order were doses of laser irradiat...
Determination of the contents of A- and B-starches in barley using Low Angle Laser Light Scattering
barley A-starch B-starch starch granules Low Angle Laser Light Scattering
2014/3/17
A method was proposed for the determination of the contents of A- and B-starches in barley and for the use in plant breeding stations and brewing/malting laboratories. A combination was used of classi...
Measurement of contrast sensitivity function in laser light
vision quality contrast sensitivity function laser light
2011/4/25
Visual quality depends on many factors of different nature and therefore it is not easy to define it. Different measures are used to describe vision quality, such as: two-point resolution, visual acui...