Design and Analysis of Flat-Top Beam Produced by Diffractive Optical Element

Design and Analysis of Flat-Top Beam Produced by Diffractive Optical Element

The modified Gerchberg-Saxton (G-S) methods of diffractive optical elements are presented for converting a Gaussian beam into a flat-top beam. The sample points of the input and output planes are discussed based on the sampling principle. The relationship between weighting factor, empirical constant...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Applied Mechanics and Materials 2015-03, Vol.743 (Mechanical, Electronic and Information Technology Engineering), p.800-807
Hauptverfasser: Liu, Y., Nie, S.Z., Fan, Z.W., Yu, J.
Format: Artikel
Sprache:eng
Schlagworte:
Beams (radiation)
Computational efficiency
Constants
Diffraction
Diffractive optical elements
Gaussian beams (optics)
Mathematical analysis
Variability
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The modified Gerchberg-Saxton (G-S) methods of diffractive optical elements are presented for converting a Gaussian beam into a flat-top beam. The sample points of the input and output planes are discussed based on the sampling principle. The relationship between weighting factor, empirical constant, diffractive efficiency, and intensity uniformity is investigated. The simulation results of different modified methods are calculated when the incident beams are the same. The results show that the intensity uniformity of the output flat-top beam is the best when using the ST modified method.
ISSN:1660-9336
1662-7482
1662-7482
DOI:10.4028/www.scientific.net/AMM.743.800