Cantor fractal zone plates: numerical simulation and experimental characterization

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Rodrigo Martín-Romo, José Augusto and Alieva, Tatiana Krasheninnikova and Davis, Jeffrey A. and Ramirez, Laura (2004) Cantor fractal zone plates: numerical simulation and experimental characterization. In RIAO/OPTILAS 2004: 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, Pts 1-3: ICO Regional Meeting. Proceedings Of The Society Of Photo-Optical Instrumentation Engineers (SPIE), 1-3 (5622). The International Society for Optical Engineering (SPIE), pp. 1474-1477. ISBN 0-8194-5575-X

Official URL: http://dx.doi.org/10.1117/12.591752




Abstract

We study experimentally and by numerical simulation the Fresnel diffraction on the recently introduced fractal zone plates (ZPs) associated with Cantor sets'. The focusing properties of these ZPs and the evolution of the intensity patterns at the plane transversal to the propagation direction are discussed. As it follows from numerical simulation the series of conventional and doughnut-like secondary focuses are observed around the principal focus. The position, depth and the size of these focuses depends on the type of Cantor set and the level of the fractal, which are directly related to the number of the corresponding Fresnel zones. The results obtained by numerical simulations are verified in the experiments. The fractal Cantor ZPs of different levels are implemented with a liquid crystal display and with the diapositives. The experimental results obtained by both types of the dispositives are in good agreement with the theory and numerical simulations.


Item Type:Book Section
Additional Information:

© (2004) SPIE--The International Society for Optical Engineering.
Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications (5ª. 2004. Porlamar, Venezuela).

Uncontrolled Keywords:Cantor Fractal Zone Plates, Fractionary Focii,Doughnut-Like Structure
Subjects:Sciences > Physics > Optics
ID Code:25551
Deposited On:26 May 2014 15:22
Last Modified:26 May 2014 15:22

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