Eur. Phys. J. Appl. Phys.
Volume 28, Number 2, November 2004
|Page(s)||179 - 186|
|Section||Laser, Optics, Optoelectronics and Nanophotonics|
|Published online||05 August 2004|
More about the light beam shaping by the integration method
ENEA, C.P. 65, 00044 Frascati, Italy
Corresponding author: firstname.lastname@example.org
Revised: 8 April 2004
Accepted: 30 April 2004
Published online: 5 August 2004
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.
PACS: 42.15.Eq – Optical system design / 42.60.Jf – Beam characteristics: profile, intensity, and power; spatial pattern formation / 42.55.Lt – Gas lasers including excimer and metal-vapor lasers
© EDP Sciences, 2004
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