Article | REF: E4045 V2

Binary optics and their application to imagery Focusing optics

Authors: Guillaume DRUART, Florence DE LA BARRIERE, Nicolas GUERINEAU

Publication date: January 10, 2019, Review date: April 12, 2021

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4. Photon screens and the antisymmetric phase grating

Some research teams have also proposed an original Fresnel lens, called a photon sieve, composed of a multitude of pinholes distributed over Fresnel zones . An example of a photon sieve is shown in figure 11 . The contributions of the individual pinholes interfere constructively overall, enabling a plane wave to be focused at a point smaller than the individual pinholes in the same way as a binarized Fresnel lens....

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Photon screens and the antisymmetric phase grating