RT Journal Article T1 Simple undergraduate experiment for synthesizing and analyzing non-uniformly polarized beams by means of a Fresnel biprism A1 Piquero Sanz, Gemma María A1 Marcos Muñoz, Ismael A1 Sande, J.C.G de AB A simple scheme to synthesize non-uniform patterns of polarization across the transverse section of a beam is proposed with the standard materials in an undergraduate optics laboratory. The experiment is based on the superposition of two orthogonally polarized fields obtained by using a Fresnel biprism and dichroic polarizers. Although no interference pattern appears in the superposition area, a non-uniformly totally polarized field is synthesized. Analytic expressions for the Jones vector and Stokes parameters of the output beam are calculated and, in the process, students can cement their knowledge about the representation of polarized light with these formalisms. The experimental polarization pattern is either obtained from intensity measurements with a CCD camera or measured directly with a commercial polarimeter modified with a pinhole. This experiment will help students discover an easy way to vary the state of polarization across the transverse section of a light field. PB American Association of Physics Teachers SN 0002-9505 YR 2019 FD 2019-03 LK https://hdl.handle.net/20.500.14352/13245 UL https://hdl.handle.net/20.500.14352/13245 LA eng NO ©2019 American Association of Physics TeachersThis work has been supported by Spanish Ministerio de Economia y Competitividad, Project No. FIS2016-75147. NO Ministerio de Economía y Competitividad (MINECO) DS Docta Complutense RD 8 abr 2025