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More about the light beam shaping by the integration method

Published online by Cambridge University Press:  05 August 2004

S. Bollanti ,
P. Di Lazzaro  and
D. Murra
S. Bollanti
Affiliation:
ENEA, C.P. 65, 00044 Frascati, Italy
P. Di Lazzaro*
Affiliation:
ENEA, C.P. 65, 00044 Frascati, Italy
D. Murra
Affiliation:
ENEA, C.P. 65, 00044 Frascati, Italy
*
[email protected]
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Abstract

The spatial shaping of light beams is the process of redistributing the irradiance of a light beam. A correct beam shaping is essential to optimize a large number of laser-material processing applications and laser-material interaction studies. In this paper, after introducing the basic equations of the classical beam integration method to reshape and homogenize laser beams, we detail the design elements, the experimental performance and the main parameters of a novel transfocal homogenizer that is able to homogenize and reshape any light beam. Then we discuss the reliability of existing international standard parameters to evaluate the “goodness” of nearly flat-top shaped laser beams. Finally, we present examples of successful applications of this new homogenizer technology to ultraviolet irradiation experiments.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 28 , Issue 2 , November 2004 , pp. 179 - 186
Copyright
© EDP Sciences, 2004

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References

See e.g. F.M. Dickey, S.C. Holswade, Laser beam shaping: theory and techniques (M. Dekker Inc., New York Basel, 2000)
Di Lazzaro, P., Bollanti, S., Felici, G., Murra, D., A new light beam homogenizer technology, in 3th GR-I International Conference on New Lasers, Technologies and Applications, edited by A. Carabelas, G. Baldacchini, P. Di Lazzaro, D. Zevgolis, Proc. SPIE 5131, 102 (2003) CrossRef
D. Murra, S. Bollanti, P. Di Lazzaro, patent No. IT01316395 (U.I.B.M.); patent No. 6, 639, 728 (U.S. P.T.O.); patent application publication EP 1150156 A2 (E.P.O., application number: 00830807.4. Filed: 6 December 2000)
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Details can be found in the web site http://www.ifsw. uni-stuttgart.de/deutsch/aktuell/info.html
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