Results 271 to 280 of about 11,238 (308)
Some of the next articles are maybe not open access.
2000
Preface Editor Contributors Introduction Todd E. Lizotte and Fred M. Dickey Hitachi Via Mechanics (USA), Inc., Londonderry, New Hampshire and FMD Consulting, LLC, Springfield, Missouri, USA The Mathematical and Physical Theory of Lossless Beam Shaping Louis A. Romero and Fred M.
openaire +1 more source
Preface Editor Contributors Introduction Todd E. Lizotte and Fred M. Dickey Hitachi Via Mechanics (USA), Inc., Londonderry, New Hampshire and FMD Consulting, LLC, Springfield, Missouri, USA The Mathematical and Physical Theory of Lossless Beam Shaping Louis A. Romero and Fred M.
openaire +1 more source
Beam Shaping Of Powerful Lasers
SPIE Proceedings, 1989Apodized (soft) apertures(AA) of 2-50 mm diameter with the near-Gaussian and the flat top spatial profiles in ultraviolet, visible and infrared regions are presented. They have the high thresholds for intensity damage.
openaire +1 more source
Diffractive shaping of excimer laser beams
Journal of Modern Optics, 2000Abstract We address the problem of shaping the intensity distribution of a highly directional partially coherent field, such as an excimer laser beam, by means of diffractive optics. Our theoretical analysis is based on modelling the multi-transverse-mode laser beam as a Gaussian Schell-model beam. It is shown numerically that a periodic element, which
J. Turunen +6 more
openaire +1 more source
2018
Laser Beam Shaping: Theory and Techniques addresses the theory and practice of every important technique for lossless beam shaping. Complete with experimental results as well as guidance on when beam shaping is practical and when each technique is appropriate, the Second Edition is updated to reflect significant developments in the field.
openaire +1 more source
Laser Beam Shaping: Theory and Techniques addresses the theory and practice of every important technique for lossless beam shaping. Complete with experimental results as well as guidance on when beam shaping is practical and when each technique is appropriate, the Second Edition is updated to reflect significant developments in the field.
openaire +1 more source
Hazard analysis on gaussian shaped laser beams
American Industrial Hygiene Association Journal, 1980Laser safety evaluations are usually difficult for those who do not perform these evaluations every day. The author develops formulae for hazard evaluation based on a Gaussian beam shape. These formulae may be applied to a variety of situations even though an electronic calculator usually is required to solve them.
openaire +2 more sources
Dammann Gratings For Laser Beam Shaping
Optical Engineering, 1989Dammann gratings are binary phase gratings that are used to produce a one- or two-dimensional array of equal-intensity light spots. Recently, Dammann gratings have become of interest for their ability to provide the optical power supply to an array of optical logic devices from a single laser source.
J. Jahns +4 more
openaire +1 more source
Laser Beam Shaping Applications
2017Preface Illuminators for Microlithography, Paul Michaloski Laser Beam Shaping in Array-Type Laser Printing Systems, Andrew F. Kurtz and Daniel D. Haas Practical UV Excimer Laser Image System Illuminators, Jeffrey P. Sercel and Michael von Dadelszen Beam Shaping for Optical Data Storage, Edwin P. Walker and Tom D.
openaire +1 more source
Shaping propagation invariant laser beams
Optical Engineering, 2015Propagation-invariant structured laser beams possess several unique properties and play an important role in various photonics applications. The majority of propagation invariant beams are produced in the form of laser modes emanating from stable laser cavities. Therefore, their spatial structure is limited by the intracavity mode formation.
Michael Soskind +2 more
openaire +1 more source
Laser Beam Shaping with Optical Fibers
1996The spatial intensity profile of a laser beam is of crucial importance for many laser applications. Homogeneous illumination or ablation of a sample by laser radiation requires a “flat top” intensity distribution. As an alternative to complex optical systems the use of optical fibers has been tested for beam shaping of XeCl excimer lasers. By controled
G. Hillrichs +4 more
openaire +1 more source
Laser beam shaping with an ellipsoidal lens
Optik, 2013Abstract This paper presents a semiconductor laser beam shaping system that can collimate the irradiance profile effectively by using an ellipsoidal lens. Geometrical optics analysis based on the ray tracing method is done and the formulas to calculate the shape of ellipsoidal lens are given. Both the theoretical and experimental result show that the
Daxin Luo, Baiqin Zhao, Xuelei Chen
openaire +1 more source