It is shown that for paraxially propagating beams of any state of coherence, the width changes along the propagation axis with the same law as that of a gaussian beam. A quality factor related to the rate of width change can then be defined. A formula expressing this quality factor in terms of the cross spectral density across the beam is derived.

Gori, F., Santarsiero, M., Sona, A. (1991). The change of width for a partially coherent beam on paraxial propagation. OPTICS COMMUNICATIONS, 82, 197-203.

The change of width for a partially coherent beam on paraxial propagation

SANTARSIERO, Massimo;
1991-01-01

Abstract

It is shown that for paraxially propagating beams of any state of coherence, the width changes along the propagation axis with the same law as that of a gaussian beam. A quality factor related to the rate of width change can then be defined. A formula expressing this quality factor in terms of the cross spectral density across the beam is derived.
1991
Gori, F., Santarsiero, M., Sona, A. (1991). The change of width for a partially coherent beam on paraxial propagation. OPTICS COMMUNICATIONS, 82, 197-203.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/142977
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