Broadband antihole photon sieve telescope

Physics – Optics

Scientific paper

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Diffractive Optics, Holographic Optical Elements, Telescopes, Astronomical Optics

Scientific paper

A broadband-corrected optical telescope has been constructed from a photon sieve with five million holes. Through careful optimization of hole size, this "antihole" sieve has holes centered on the dark underlying Fresnel zones. The diffraction-limited performance of a 1 m focal-length, f/10 element is demonstrated with a view toward constructing large lightweight telescopes for space applications.

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