2026-07-31T05:50:07Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/350402023-08-26T07:31:34Zcom_20.500.14352_14col_20.500.14352_15

Sánchez Brea, Luis Miguel Torcal Milla, Francisco José Herrera Fernández, José María Morlanes, Tomás Bernabeu Martínez, Eusebio 2023-06-19T14:59:06Z 2023-06-19T14:59:06Z 2014 0146-9592 10.1364/OL.39.005764 https://hdl.handle.net/20.500.14352/35040 http://dx.doi.org/10.1364/OL.39.005764 https://www.osapublishing.org 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. eng open access Self-imaging technique for beam collimation journal article