Title

Effects Of Process Errors On The Diffraction Characteristics Of Binary Dielectric Gratings

Authors

Authors

D. A. Pommet; E. B. Grann;M. G. Moharam

Comments

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Abbreviated Journal Title

Appl. Optics

Keywords

DIFFRACTIVE OPTICS; OPTICAL FABRICATION; DIFFRACTION MATHEMATICAL MODELS; Optics

Abstract

The effects of fabrication errors on the predicted performance of surface-relief phase gratings are analyzed with a rigorous vector diffraction technique. For binary elements, errors in the dimensions of the profile [depth, linewidth (fill factor), and grating period], as well as errors in the shape of the profile, are investigated. It is shown that the dimension errors do not have a significant effect on grating performance when the grating is designed for either maximum or minimum diffraction efficiency. A trapezoid is used to model the shape error of the profile. For the first time, design rules that significantly reduce the effects of any shape error are presented.

Journal Title

Applied Optics

Volume

34

Issue/Number

14

Publication Date

1-1-1995

Document Type

Article; Proceedings Paper

Language

English

First Page

2430

Last Page

2435

WOS Identifier

WOS:A1995QX40200006

ISSN

0003-6935

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