Results 11 to 20 of about 2,360,851 (277)

Laser beam shaping techniques [PDF]

Proceedings of SPIE, 2000
Industrial, military, medical, and research and development applications of lasers frequently require a beam with a specified irradiance distribution in some plane. A common requirement is a laser profile that is uniform over some cross-section. Such applications include laser/material processing, laser material interaction studies, fiber injection ...
Weichman, Louis S., Dicky, Fred M., Shagam, Richard N.   +2 more
openaire   +3 more sources

Ray mapping approach in double freeform surface design for collimated beam shaping

, 2022
Paper 995004, 8 S.Laser beam shaping enables the simultaneous redistribution of the irradiance and phase of a laser beam. The desired shape of the laser beam is thereby determined by the respective application.
Gross, H., Bösel, C.
core   +1 more source

Beam shaping in the high-energy kW-class laser system Bivoj at the HiLASE facility

High Power Laser Science and Engineering, 2023
A fully automatic fail-safe beam shaping system based on a liquid crystal on a silicon spatial light modulator has been implemented in the high-energy kilowatt-average-power nanosecond laser system Bivoj.
Tomáš Paliesek, Petr Navrátil, Jan Pilař, Martin Divoký, Martin Smrž, Tomáš Mocek   +5 more
doaj   +1 more source

Possible explanations for different surface quality in laser cutting with 1 micron and 10 microns beams [PDF]

, 2012
In laser　cutting　of　thick　steel　sheets,　quality　difference　is　observed　between　cut　surfaces　obtained　with 1 micron and 10 micron laser beams. This paper investigates physical mechanisms for this interesting and important problem of the wavelength ...
Remy Fabbro, Koji Hirano, FABBRO, Rémy, HIRANO, Koji   +3 more
core   +1 more source

Stochastic tandem microlens arrays for beam homogenization

, 2022
Paper 70620QFly's eye condensers are commonly used for the beam shaping of an arbitrary input intensity distribution into a top hat. The setup usually consists of a Fourier lens and two identical regular microlens arrays - often referred to as tandem ...
Radtke, D., Zeitner, U.D., Dannberg, P., Bräuer, A., Wippermann, F.C.   +4 more
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Study of fundamental parameters in hybrid laser welding [PDF]

, 2011
This thesis undertakes a study of laser welding in terms of basic laser material interaction parameters. This includes power density, interaction time and specific point energy.
Suder, Wojciech
core   +7 more sources

Beam-shaping design for multi-wavelength diode laser stack system coupled into optical fiber for biomedical applications

Results in Optics, 2021
Multispectral diode laser sources are extensively used for a variety of applications involving the identification of small objects based on their spectral signature.
L. Leggio, D. Gallego, S.B. Gawali, B. Wiśniowski, O. de Varona   +4 more
doaj   +1 more source

Optical trapping with superfocused high-M2 laser diode beam [PDF]

, 2015
Many applications of high-power laser diodes demand tight focusing. This is often not possible due to the multimode nature of semiconductor laser radiation possessing beam propagation parameter M2 values in double-digits.
Kuchinskii, V. I., S. N. Loseva, Deryagin, A. G., M. Farsarib, Soboleva, K.K., V. V. Dudelev, W. Sibbett, Rafailov, E. U., Dudelev, V. V., Melissinaki, V., Deryagin, A.G., V. V. Dudeleva, Sobolev, K. K., K. K. Soboleva, V. Melissinaki, Kuchinskii, V.I., A. G. Deryagin, V. I. Kuchinskiia, Rafailov, E.U., G. S. Sokolovskii, Losev, S.N., A. G. Deryagina, V. I. Kuchinskii, M. Farsari, K. K. Sobolevac, Sokolovskii, G.S., V. Melissinakib, W. Sibbette, G. S. Sokolovskiia, Sokolovskii, G. S., Dudelev, V.V., E. U. Rafailov, Farsari, M., Losev, S. N., Sibbett, W., E. U. Rafailovf, S. N. Losev   +36 more
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Beam shaping system for laser-induced crystal growth

, 2023
We report on the development and setup of a beam shaping system for the Laser-Diode-Floating-Zone (LDFZ) crystal growth, a crucible-free technique used for growing high-purity crystals.
Hans-Dieter Hoffmann, Thomas Westphalen, Westphalen, Thomas, Hoffmann, Hans-Dieter, Florian Rackerseder, Ito, Toshimitsu, Rackerseder, Florian, Martin Traub, Traub, Martin, Toshimitsu Ito   +9 more
core   +1 more source

Anamorphic Shaping of Laser Beams [PDF]

PhotonicsViews, 2019
AbstractAnamorphic beam shaping optics are, e.g., used to transform elliptical laser beams to a round shape before coupling them to single‐mode optical fibers. Conversely, there are cases where originally round laser beams need to be transformed into an elliptical shape.
Ulrich Oechsner, Christian Knothe, Mats Rahmel   +2 more
openaire   +1 more source