We show that twisted Gaussian Schell-model (TGSM) beams can be represented through an incoherent superposition of partially coherent beams carrying optical vortices and whose cross-spectral densities are expressed in terms of modified Bessel functions. Moreover, starting from this result, we show that the modal expansion of the crossspectral density of a TGSM source can be directly obtained through simple mathematics.
|Titolo:||Twisted Gaussian Schell-model beams as series of partially coherent modified Bessel-Gauss beams|
|Data di pubblicazione:||2015|
|Citazione:||Gori, F., & Santarsiero, M. (2015). Twisted Gaussian Schell-model beams as series of partially coherent modified Bessel-Gauss beams. OPTICS LETTERS, 40(7), 1587-1590.|
|Appare nelle tipologie:||1.1 Articolo in rivista|