130250 20240123131022.0 doi 10.1016/j.optlastec.2018.06.007 sideral 106661 ART-2018-106661 eng Sanchez-Brea, Luis Miguel Far-field diffraction of linear chirped gratings 2018 We analyze the far-field diffraction pattern produced by linear spatial chirped gratings. An intuitive analytical interpretation of the generated diffraction orders is proposed for gratings with linear variation of the period and linear variation of the spatial frequency. Also, experiments using Gaussian beams and plane wave illumination are performed. The analytical expressions are compared to numerical and experimental results, showing a high agreement. Chirped gratings can be implemented in interesting applications: we analyze how they can be used as a deflector, since tunable direction of diffracted orders can be achieved by displacing laterally the grating with respect to the incident light beam. Also the angular width of diffraction orders can be controlled and chirped gratings can be used to generate uniform illumination over a controlled angular range. These two applications have also been experimentally shown. info:eu-repo/grantAgreement/ES/MINECO/RTC-2016-5277-5 info:eu-repo/semantics/closedAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 3.319 2018 OPTICS 21 / 95 = 0.221 2018 Q1 T1 PHYSICS, APPLIED 38 / 148 = 0.257 2018 Q2 T1 0.775 2018 Atomic and Molecular Physics, and Optics 2018 Q1 Electronic, Optical and Magnetic Materials 2018 Q1 Electrical and Electronic Engineering 2018 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Torcal-Milla, Francisco Jose Universidad de Zaragoza (orcid)0000-0003-3178-5253 Buencuerpo, Jeronimo 2002 385 Universidad de Zaragoza Dpto. Física Aplicada Área Física Aplicada 107 (2018), 337-343 Opt. Laser Technol. Optics and Laser Technology 0030-3992 1153260 http://zaguan.unizar.es/record/130250/files/texto_completo.pdf Versión publicada 2761156 http://zaguan.unizar.es/record/130250/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:130250 articulos driver 2024-01-23-12:43:26 ARTICLE