%0 Journal Article
%A Sánchez Brea, Luis Miguel
%A Torcal Milla, Francisco José
%A Herrera Fernández, José María
%A Morlanes, Tomás
%A Bernabeu Martínez, Eusebio
%T Self-imaging technique for beam collimation
%D 2014
%@ 0146-9592
%U https://hdl.handle.net/20.500.14352/35040
%X A simple collimation technique based on measuring the period of one self-image produced by a diffraction grating is proposed. Transversal displacement of the grating is not required, and then automatic single-frame processing can be performed. The self-image is acquired with a CMOS camera, and the period is computed using the variogram function. Analytical and experimental results are obtained, which show the simplicity and accuracy of the proposed technique.
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