Publication: Optimal phase distributions for polygonal Fresnel lenses
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2010
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IEEE
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Abstract
Polygonal Fresnel zone plates can be configured in a variety of forms depending on the number of sides of the polygon and the number of phase steps used. This contribution deals with some specific polygonal designs that tessellate the plane: triangles, squares, and hexagons. The phase distribution is chosen as a continuous one to form a polygonal kinoform. The selected designs have been simulated and its behaviour compared. Although their performance is worse than the circular Fresnel plate, they may present some other advantages as the tessellation capability, and the possibility to fabricate them as extruded profiles.
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ISSN: 2164-3342
Conferencia: 4th European Conference on Antennas and Propagation (EuCAP) ; Barcelona, SPAIN; APR 12-16, 2010
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1- H. D. Hristov, "Fresnel zones in wireless links, zone plate lenses and antennas, Artech House, Norwood, MA, USA, 2000.
2- J. Alda, F. J. González, "Polygonal Fresnel zone plates", J. Opt. A: Pure & Appl. Opt., 11, 055707 (7pp) (2009).
3- J. Alda, J. M. Rico-García, F. J. Salgado-Remacha, L. M. Sánchez-Brea, "Diffractive performance of square Fresnel zone plates", Opt. Commun., 282, 3402-3407 (2009).
4- J. M. Rico-García, F. J. Salgado-Remacha, L. M. Sánchez-Brea, J. Alda, "Optimized square Fresnel zone plates for microoptics applications", Procc. SPIE 7390, 739011 (8pp) (2009).