Results published previously [ J. Opt. Soc. Am. 57, 610 ( 1967)] concerning the focusing properties of Fresnel zone plates were obtained by implicitly invoking the Fraunhofer approximation. A comparison of these results with those derived from Fresnel diffraction theory shows that the focusing properties of Fresnel zone plates predicted by Fraunhofer diffraction theory are incorrect except for resolution defined by the Rayleigh criterion.
© 1991 Optical Society of America
Original Manuscript: November 17, 1989
Manuscript Accepted: July 11, 1990
Published: January 1, 1991
Jing-Ao Sun and Anni Cai, "Archaic focusing properties of Fresnel zone plates," J. Opt. Soc. Am. A 8, 33-35 (1991)