About zemike method visualization of transparent structures by laser beam reflection from thin layer of oil by thermo-capillary convection

2016 ◽  
Author(s):  
E. L. Bubis
Keyword(s):  
Laser Beam ◽  
Thin Layer ◽  
Beam Reflection

High Resolution Displacement of Functional Groups onto Fluorocarbon Resin Surface by Using ArF Excimer Laser

1996 ◽  
Vol 451 ◽  
Author(s):  
T. Shimizu ◽  
M. Murahara
Keyword(s):  
Contact Angle ◽  
High Resolution ◽  
Laser Beam ◽  
Thin Layer ◽  
Functional Groups ◽  
Excimer Laser ◽  
Laser Fluence ◽  
Large Area ◽  
Three Solutions ◽  
Arf Excimer Laser

ABSTRACTA Fluorocarbon resin surface was selectively modified by irradiation with a ArF laser beam through a thin layer of NaAlO2, B(OH)3, or H2O solution to give a hydrophilic property. As a result, with low fluence, the surface was most effectively modified with the NaAlO2 solution among the three solutions. However, the contact angle in this case changed by 10 degrees as the fluence changed only 1mJ/cm2. When modifying a large area of the surface, high resolution displacement could not be achieved because the laser beam was not uniform in displacing functional groups. Thus, the laser fluence was successfully made uniform by homogenizing the laser beam; the functional groups were replaced on the fluorocarbon resin surface with high resolution, which was successfully modified to be hydrophilic by distributing the laser fluence uniformly.

Investigation of Textile Materials for Laser Light Beam Scanning

2011 ◽  
Vol 222 ◽  
pp. 40-43 ◽  
Author(s):  
Inga Dabolina ◽  
Ausma Vilumsone ◽  
Juris Blums
Keyword(s):  
Laser Beam ◽  
Light Beam ◽  
Human Body ◽  
Laser Scanning ◽  
Material Selection ◽  
Scanning System ◽  
Angle Of Incidence ◽  
Beam Scanning ◽  
Textile Materials ◽  
Beam Reflection

The scanning of human body as a method for gaining human measurements has several preferences. The gathering of data is possible in a very short time. In comparison to manual measuring methods, scanning acquires a larger amount of measurements. There are several modes of gaining human body measurements using the scanning system: laser scanning, light beam scanning, etc. A research on the laser beam reflection capabilities on different textile materials has been performed. The description of laser reflections has been compared to the Lambert’s law’s characteristics. The matrix of material selection is made in the process of planning the experiment and all possible materials are presented in this matrix. Eight textile materials are chosen for the experimental work: six lingerie and two additional materials. A laser beam with an angle of incidence of 0º and 45º is used to make the experiment. The dependence of the results on the wavelength of laser beams has also been compared.

Monitoring of heartbeat by laser beam reflection

2003 ◽  
Vol 14 (3) ◽  
pp. 317-322 ◽  
Author(s):  
P A Ritto ◽  
J G Contreras ◽  
J J Alvarado-Gil
Keyword(s):  
Laser Beam ◽  
Beam Reflection

Reproduction of sound from old wax phonograph cylinders using the laser-beam reflection method

1986 ◽  
Vol 25 (5) ◽  
pp. 597 ◽  
Author(s):  
Toshiaki Iwai ◽  
Toshimitsu Asakura ◽  
Tom Ifukube ◽  
Toshio Kawashima
Keyword(s):  
Laser Beam ◽  
Reflection Method ◽  
Beam Reflection

scholarly journals The Possibilities of Using the Terrestrial Scanning Data for Classification of Rocks in Limestone Mine “Czatkowice”

2015 ◽  
Vol 97 (1) ◽  
pp. 80-90
Author(s):  
Cezary Toś
Keyword(s):  
Laser Beam ◽  
Near Infrared ◽  
Spectrometric Analysis ◽  
Rock Classification ◽  
Rock Samples ◽  
Spectral Curves ◽  
Rock Formations ◽  
Beam Reflection ◽  
The Relationship

AbstractThis paper presents results of a research of potential utilisation of the intensity of laser beam reflection recorded by ground-based lasers, for an initial classification of rock formations within the Czatkowice Limestone Quarry. As part of the research, spectrometric analysis in visible (VIS), near-infrared (NIR) and Short-wavelength infrared (SWIR) bands was carried out for rock samples typical for the Czatkowice Quarry. Moreover, the rock samples were scanned using equipment working within different wavelengths. The reflected intensity of the laser beam recorded for each rock sample with several different scanners were analysed to assess their potential use for rock classification. The results of this analysis were then compared with spectral curves of each sample. The relationship between the intensity of the laser beam reflection and the spectral curves can be used for selection of most suitable scanner for rock classification.

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