Share Email Print
cover

Proceedings Paper

Fresnel diffraction from a step in reflection and transmission modes
Author(s): Mohammad Taghi Tavassoly; M. Sahlol-Bai; M. Salehi; Hamid Reza Khalesifard
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Fresnel diffraction from a step, in reflection and transmission modes is studied. The study shows that the resulting diffraction pattern is similar to that of a semi- infinite obstacle, but the intensity distribution near the step edge is very sensitive to the step height and is a periodic function of the height. Therefore the effect can be exploited for measuring the heights and optical path differences of the coated films, strips, and small displacements.

Paper Details

Date Published: 19 July 1999
PDF: 2 pages
Proc. SPIE 3749, 18th Congress of the International Commission for Optics, (19 July 1999); doi: 10.1117/12.354885
Show Author Affiliations
Mohammad Taghi Tavassoly, Tehran Univ. and Institute for Advanced Studies in Basic Sciences (Iran)
M. Sahlol-Bai, Tehran Univ. (Iran)
M. Salehi, Tehran Univ. (Iran)
Hamid Reza Khalesifard, Institute for Advanced Studies in Basic Sciences (Iran)


Published in SPIE Proceedings Vol. 3749:
18th Congress of the International Commission for Optics
Alexander J. Glass; Joseph W. Goodman; Milton Chang; Arthur H. Guenther; Toshimitsu Asakura, Editor(s)

© SPIE. Terms of Use
Back to Top