A photon sieve is a device for focusing light using diffraction and interference. It consists of a flat sheet of material full of pinholes that are arranged in a pattern which is similar to the rings in a Fresnel zone plate, but a sieve brings light to much sharper focus than a zone plate. The sieve concept, first developed in 2001, is versatile because the characteristics of the focusing behaviour can be altered to suit the application by manufacturing a sieve containing holes of several different sizes and different arrangement of the pattern of holes.
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- Photon-sieve lithography, Rajesh Menon and Dario Gil, J. Opt. Soc. Am. A/Vol. 22, No. 2/February 2005
- Photon sieve telescope: imaging with 10 million pinholes, Geoff Andersen, 4 September 2006, SPIE Newsroom. DOI: 10.1117/2.1200608.0358
- Large optical photon sieve, Geoff Andersen, OPTICS LETTERS / Vol. 30, No. 22 / November 15, 2005