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Volume 26 - ICOP & ICPET 2020
ICOP & ICPET _ INPC _ ICOFS 2020, 26 - ICOP & ICPET 2020: 457-460 |
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Sabatyan A, Hadi S. Exploring focusing features of off-axis square zone plate. ICOP & ICPET _ INPC _ ICOFS 2020; 26 :457-460
URL: http://opsi.ir/article-1-2091-en.html
URL: http://opsi.ir/article-1-2091-en.html
1- The Physics Department, Faculty of Sciences, Urmia University
Abstract: (1253 Views)
In this article, a square zone plate is introduced which focuses a plane incident wave into a point located out of the optical axis. This new plate is called off-axis square zone plate. The focusing properties of the element is studied. We show that by changing a parameter called as shifting parameter the focused beam is displaced over the focal plane. As a result, by examining the intensity profile, it can be seen that the widths of the focal spots are approximately the same. All simulation results are verified by the corresponding experiments.
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