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Saber A, Ahadi Akhlaghi E, Abbasi Z. Using Fresnel diffraction from phase step to measure the cylindrical wavefront curvature. ICOP & ICPET _ INPC _ ICOFS 2016; 22 :1-4
URL: http://opsi.ir/article-1-870-en.html
URL: http://opsi.ir/article-1-870-en.html
1- University of Mohaghegh Ardabili
2- Institute for Advanced Studies in Basic Sciences
2- Institute for Advanced Studies in Basic Sciences
Abstract: (4123 Views)
In this paper a new method to measure the curvature of cylindrical wavefront is introduced which is based on Fresnel diffraction from a phase step. The diffracted intensity from a phase step which it is oriented perpendicular to a line source is derived and simulated. The diffraction pattern of a cylindrical wavefront, from the edge of a plate is recorded using a camera. Then it is analyzed using the Fourier transform method and the curvature of wavefront is calculated.
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