Interference properties of a light beam having a helical wave surface

The spatial wave front characteristics of a laser were examined by two beam interference after amplitude division. Complex interference patterns were observed and are interpreted as due to a helical form of the phase front. This unusual form is implicit in previous analyses of cavity eigenfunctions,...

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Veröffentlicht in:	Optics communications 1979-01, Vol.30 (3), p.263-267
Hauptverfasser:	Vaughan, J.M., Willetts, D.V.
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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