OPTICAL DIRECT OBSERVATION OF GOUY PHASE SHIFT

FLUXÁ PATRICIO; ZERBINO LÍA MARÍA; GARAVAGLIA MARIO

OPTICS LETTERS

OSA

Lugar: Washington; Año: 2006

0146-9592

This paper considers the anomalous propagation of phase through the focus of an optical  system. We observed the interference rings produced by two collinear spherical waves coming from the same laser source with different focal points along the same axis. Then three regions  are determined along the optical axis: R1, before focuses; R2, between focuses, and R3, after focuses. In each of them we pictured interference rings which are complementary in intensity with a CCD camera. The complementary relationship is caused by the sudden change of phase by p through each  focus.