Abstract
We introduce and study a novel type of square zone plate, in which square Fresnel zones are azimuthally structured. The effect of the structured parameters on its focusing properties were studied in detail. Simulations show that the main lobe is well modified, as well as the side lobes are reduced in comparison to that of the square zone plate. In addition, by showing that the corners-originated beams have destructive contribution on the resolution as well as diffractive efficiency, most of the rectangle dark zones were shifted toward the corners in order to get higher diffraction efficiency. Having been shifted the dark rectangle zones, we demonstrated that focusing efficiency of square zone plate including both resolution and signal to noise ratio are also more enhanced. Additionally, simulation results are also verified by experiments.
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Alda, J., Rico-Garca, J.M., Salgado-Remacha, F.J., Sanchez-Brea, L.M.: Diffractive performance of square Fresnel zone plates. Opt. Commun. 282, 3402–3407 (2009)
Alda, J., Boreman, G.: Optimization of polygonal Fresnel zone plates. Microw. Opt. Technol. Lett. 50, 536–541 (2008)
Cuadrado, J.M., Perez, M.V., Gomez-Reino, C.: Equilateral hyperbolic zone plates: their use in the alignment of a Mach–Zehnder interferometer. Appl. Opt. 26, 1527–1529 (1987)
Hyde, R.: Eyeglass 1, “very large aperture diffractive telescopes”. Appl. Opt. 38, 4198–4212 (1999)
Joo, C., Pati, G.S., Chen, C.G., Konkola, P.T., Heilmann, Ralf K., Schattenburg, Mark L., Liddle, Alexander, Anderson, Erik H.: Precision fringe metrology using a Fresnel zone plate. J. Vac. Sci. Technol. B 20, 3075–3079 (2002)
Kirz, J.: Phase zone plates for x rays and the extreme uv. J. Opt. Soc. Am. 64, 301 (1974)
Minin, I.V., Minin, O.V., Petosa, A., Thirakuone, S.: Improved zoning rule for designing square Fresnel zone plate lenses. Microw. Opt. Technol. Lett. 49, 276–278 (2007)
Sabatyan, A., elahi, L.: FFT-based convolution algorithm for fast and precise numerical evaluating diffracted field by photon sieve. Optik 124, 4960–4962 (2013)
Sabatyan, A., Rafighdoost, J.: Focusing specification of cross-like Fresnel zone plate. OPTIK 126, 4796–4799 (2015)
Schmahl, G., Rudolph, D.: High-power zone plates as image forming systems for soft x-rays. Optik 29, 577–585 (1969)
Vierke, T., Jahns, J.: Diffraction theory for azimuthally structured Fresnel zone plate. J. Opt. Soc. Am. A 31, 363–372 (2015)
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Sabatyan, A., Besharatfar, H. Focusing behavior of azimuthally structured square zone plate. Opt Quant Electron 48, 383 (2016). https://doi.org/10.1007/s11082-016-0657-0
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DOI: https://doi.org/10.1007/s11082-016-0657-0