Hostname: page-component-7479d7b7d-k7p5g Total loading time: 0 Render date: 2024-07-08T21:04:52.447Z Has data issue: false hasContentIssue false
  • English
  • Français

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]
Get access

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

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

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)
International Organization for Standardization, document ISO/DIS 13694, Test method for laser beam parameters: Power (energy) density distribution (2000)
T. Letardi, S. Bollanti, P. Di Lazzaro, F. Flora, N. Lisi, C.E. Zheng, Il Nuovo Cimento D 14, 495 (1992)
Di Lazzaro, P., Hercules, an XeCl laser facility for high-intensity irradiation experiments, in 2nd GR-I International Conference on New Lasers, Technologies and Applications, edited by A. Carabelas, P. Di Lazzaro, A. Torre, G. Baldacchini, Proc. SPIE 3423, 35 (1998) CrossRef
Andor Technology Limited, 9 Millennium Way, BT12 7AL Belfast Northern Ireland. Web site http://www.andor-tech.com
Bollanti, S., Di Lazzaro, P., Flora, F., Letardi, T., Lisi, N., Zheng, C.E., Appl. Phys. B 55, 84 (1992) CrossRef
M. Born, E. Wolf, in Principles of optics, 6th edn. (Pergamon Press Ltd, Oxford, 1980), pp. 508–513
See the web site http://www.iso.ch/iso/en/ISOOnline.frontpage
Mann, K., Ohlenbusch, J., Westphal, V., Characterization of excimer laser beam parameters, in 3rd Int. Workshop on Laser Beam and Optics Characterization, edited by M. Morin, A. Giesen, Proc. SPIE 2870, 367 (1996) CrossRef
Bollanti, S., Di Lazzaro, P., Murra, D., Kana, E.T., Felici, G., Appl. Phys. B 78, 195 (2004) CrossRef
Details can be found in the web site http://www.ifsw. uni-stuttgart.de/deutsch/aktuell/info.html
Info&Tech S.r.l. E-mail: [email protected] Web site: www.infoetech.biz