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Exact axial electromagnetic field for vectorial Gaussian and flattened Gaussian boundary distributions
Riccardo Borghi1, Alessandro Ciattoni, Massimo Santarsiero
1Dipartimento di Ingegneria Elettronica, Università degli Studi Roma Tre and Instituto Nazionale per la Fisica della Materia, Rome, Italy. riccardo.borghi@uniroma1.it
Abstract:
The exact expressions of the electromagnetic field pertinent to Gaussian and flattened Gaussian linearly polarized boundary distributions have been derived in closed-form terms for any point lying on the axis. The obtained results allow the fields to be predicted for an arbitrary transverse beam size. Numerical results showing the differences between the exact results and those obtained within the paraxial framework are also presented.