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Proceedings Paper

Diffraction and interference of classical particles
Author(s): A. Lupascu
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Paper Abstract

We present a discrete model for the motion of a beam of classical particles propagating across a rectangular lattice. These particles are represented by their classical probabilities to be found in different cells of the lattice. We consider two kinds of interactions between the particles and the intmvening substance. In free space the particles slightly deviate fiom a pure forward movement. When they collide with an obstacle, they are elastically reflected. Rather surprisingly, our simple model predicts a wavy character for the probability profile of this non-quantum particle beam. We observe maxima and minima under very general conditions. Specifically, particles experience difgaction around obstacles. These fiinges are not the result of interference of certain waves, but rather of the particle reflections on obstacles, as well as of the deviations from a pure advancing movement. We study the influence of the dimensions of the source, of the obstacles and of the interaction between the beam and the screens.

Paper Details

Date Published: 14 December 2005
PDF: 8 pages
Proc. SPIE 5972, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies II, 59720B (14 December 2005); doi: 10.1117/12.639446
Show Author Affiliations
A. Lupascu, Politehnica Univ. Bucharest (Romania)

Published in SPIE Proceedings Vol. 5972:
Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies II
Ovidiu Iancu; Adrian Manea; Paul Schiopu; Dan Cojoc, Editor(s)

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