"We show that the cross-spectral density in the far zone of a homogeneous spherical source can be described as a lowpass. filtered version of that existing across the source surface. We prove that, to an excellent approximation, the. corresponding filter with respect to a (normalized) spatial frequency $\\xi$ has a functional structure of the form $\\sqrt{1-\\xi^2},. for $0 \\le \\xi \\le 1$. The cases of spatially incoherent and Lambertian sources are treated as significant examples."
Borghi, R., Gori, F., Korotkova, O., Santarsiero, M. (2012). Propagation of cross-spectral densities from spherical sources. OPTICS LETTERS, 37(15), 3183-3185 [10.1364/OL.37.003183].
Propagation of cross-spectral densities from spherical sources
BORGHI, Riccardo;SANTARSIERO, Massimo
2012-01-01
Abstract
"We show that the cross-spectral density in the far zone of a homogeneous spherical source can be described as a lowpass. filtered version of that existing across the source surface. We prove that, to an excellent approximation, the. corresponding filter with respect to a (normalized) spatial frequency $\\xi$ has a functional structure of the form $\\sqrt{1-\\xi^2},. for $0 \\le \\xi \\le 1$. The cases of spatially incoherent and Lambertian sources are treated as significant examples."I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
