RT Journal Article T1 The beam quality parameter of spirally polarized beams A1 Piquero Sanz, Gemma María A1 Ramírez Sánchez, Victoria AB Starting from the expression for the quality parameter of a superposition of two general fields, the case of beams that can be written in terms of the polarization basis introduced by Gori is investigated. Different types of this class of beam are studied and compared. In particular, spirally polarized beams are considered. As an example, polarized Bessel-Gauss beams are analyzed in detail. PB IOP Publishing Ltd. SN 1464-4258 YR 2008 FD 2008-12 LK https://hdl.handle.net/20.500.14352/50870 UL https://hdl.handle.net/20.500.14352/50870 LA eng NO © 2008 IOP Publishing Ltd.We thank Dr J C G de Sande and Dr J Serna for their valuable suggestions. This work has been supported by the Ministeriode Educación y Ciencia of Spain, project FIS2007-63396, and project CCG07-UCM/ESP-3070. NO Ministerio de Educación y Ciencia of Spain DS Docta Complutense RD 9 jul 2025