RT Journal Article T1 On-axis polarization of beams radiated by electromagnetic circularly coherent sources A1 González de Sande, Juan Carlos A1 Korotkova, Olga A1 Santarsiero, Massimo A1 Martínez Herrero, María Rosario A1 Piquero Sanz, Gemma María A1 Gori, Franco AB On-axis spectral density and degree of polarization of beams radiated by electromagnetic (EM) sources with circular correlations are shown to be finely controlled by changing the source parameters. We reveal, in particular, that in this beam class, unlike for all previously known stationary beams, it is possible to control independently the dynamics of the on-axis spectral density and the degree of polarization. This was enabled by the obtained analytical expression for the on-axis polarization matrix, derived for general EM sources with circular coherence and Gaussian spectral density across the source plane. A simple experimental scheme for generating a broad class of EM circularly coherent sources is devised involving only a line source, a lens, and a transparency, possibly anisotropic. PB Optica Publishing Group SN 0146-9592 YR 2022 FD 2022-07-21 LK https://hdl.handle.net/20.500.14352/129265 UL https://hdl.handle.net/20.500.14352/129265 LA eng NO J. C. G. De Sande, O. Korotkova, M. Santarsiero, R. Martínez-Herrero, G. Piquero, and F. Gori, "On-axis polarization of beams radiated by electromagnetic circularly coherent sources," Opt. Lett. 47, 3772-3775 (2022) NO Ministerio de Ciencia, Imnovación y Universidades (España) NO Agencia Estatal de Investigación (España) DS Docta Complutense RD 25 mar 2026