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Laser Sheet Scattering and the Cameras' Positions in Particle Image Velocimetry

100%
Ilić J., Čantrak D., Srećković M.
Acta Physica Polonica A
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2007
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vol. 112
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issue 5
1113-1118
EN
Simulations of laser sheet scattering by microparticles, based on the generalized Lorenz-Mie theory for the case of numerous random spatial distributions of scattering particles, were done, using the novel computational time saving strategy. This type of scattering by particles immersed in a fluid flow and its recording on cameras, presents the essence of particle image velocimetry systems. The continuous and large change of the intensity of a scattered light falling on the camera causes the sequences of images of varying quality, which makes many of them useless. This paper shows how the problem could be alleviated by determining the angles of low relative standard deviation of scattered light intensity and using them for recording, as well as by avoiding the angles of high relative standard deviation of scattered light intensity.
2
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Laser Interaction with Material - Theory, Experiments and Discrepancies

76%
Srećković M., Ilić J., Davidović M., Djokić B., Tomić Ž., Latinović Z., Družijanić D.
Acta Physica Polonica A
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2009
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vol. 116
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issue 4
618-621
EN
The experimental treatment of chosen material with laser beams, starting from continuous wave up to fs pulses, produces the necessity to find the common and sophisticated theoretical approaches to interaction modeling. For chosen materials, some laser treatment and damage analyses are performed. The provoked stresses and parameters of transport processes (penetration depth) are calculated by using the programs for electrical circuit analyses. Some inconsistencies in the treatment of large area laser-material interaction are discussed.
3
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Models of Interactions of Laser Beams with Materials of Interest for Optical Components and Provoked Damages

76%
Srećković M., Ilić J., Kovačević A., Pantelić S., Latinović Z., Borna N., Ćosović V.
Acta Physica Polonica A
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2007
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vol. 112
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issue 5
935-940
EN
Models of interactions of laser beams with materials of interest for optical components are presented in this paper. Special attention is paid to damages which appear within both active materials and optical components along the path of a propagating beam with theoretical treatment via various models.
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