Shape invariant propagation of polychromatic fields |
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| Authors: | F. Gori R. Grella |
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| Affiliation: | Dipartimento di Fisica, Università di Roma “La Sapienza, I00185 Roma, Italy;Istituto di Fisica Tecnica, Facoltà di Ingegneria, Università di L''Aguila, Italy |
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| Abstract: | When a polychromatic field propagates the transverse distribution of the power spectrum generally changes from one plane to another. Conditions are found under which the spectrum distribution maintains the same shape in any cross-section. Examples of fields satisfying these conditions are given. |
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