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Proceedings Paper

Novel method for analyzing signal errors caused by polygonal approximations in the fabrication of diffractive elements
Author(s): Ilkka J.P. Kallioniemi; Jyrki Saarinen; Kasimir Blomstedt; Jari Pekka Turunen
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Paper Abstract

We develop a novel and efficient method to simulate diffraction patterns in the far field and in the Fresnel region when the phase counters of a quantized diffractive optical element are approximated by arbitrary polygons. Approximation causes signal errors whose effects have not been extensively studied so far. We take the polygonal shapes into account without any further approximations in the simulation, in contrast to calculations based on direct application of the Fast Fourier Transform. The method is applied to diffractive Fresnel lenses, axicons and gratings with finite size.

Paper Details

Date Published: 24 September 1997
PDF: 8 pages
Proc. SPIE 3099, Micro-optical Technologies for Measurement, Sensors, and Microsystems II and Optical Fiber Sensor Technologies and Applications, (24 September 1997); doi: 10.1117/12.281229
Show Author Affiliations
Ilkka J.P. Kallioniemi, Helsinki Univ. of Technology (Finland)
Jyrki Saarinen, Helsinki Univ. of Technology (Finland)
Kasimir Blomstedt, Helsinki Univ. of Technology (Finland)
Jari Pekka Turunen, Univ. of Joensuu (Finland)


Published in SPIE Proceedings Vol. 3099:
Micro-optical Technologies for Measurement, Sensors, and Microsystems II and Optical Fiber Sensor Technologies and Applications
Olivier M. Parriaux; Ernst-Bernhard Kley; Brian Culshaw; Magnus Breidne, Editor(s)

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