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Circular interference fringes

In the Michelson interferometer a collimated light beam is divided at a beam splitter into two coherent beams of equal amplitude that are incident normally on two plane mirrors. The reflected beams recombine coherently at the beam splitter to give circular interference fringes at infinity focused by a lens at the plane of the detector (see figure on GC-FTIR). [Pg.189]

The silica him thickness was determined as a function of the disk radius by an optical interference method using the spectrometer. A steel ball was loaded against the silica surface to obtain an interference pattern of a central, circular Hertzian area with surrounding circular fringes due to the air gap between the deformed ball and flat. The thickness of... [Pg.9]

Consider a drop of a transparent liquid, characterized by a low contact angle (a few degrees), deposited on a smooth and reflecting substrate. When such a drop is observed under a microscope, circular and concentric black fringes appear. These fringes are due to interference effects between the... [Pg.39]

Here d is the mirror separation, A is the wavelength, m is an integer, and 0 is a constant which produces a circular fringe. If m is half integer, then destructive interference occurs and a dark fringe results. At the center of the fringe, 0 is zero and cos 0=1, so that equation 1 becomes... [Pg.165]

See other pages where Circular interference fringes is mentioned: [Pg.174]    [Pg.312]    [Pg.165]    [Pg.41]    [Pg.174]    [Pg.312]    [Pg.165]    [Pg.41]    [Pg.91]    [Pg.516]    [Pg.219]    [Pg.52]    [Pg.120]    [Pg.136]    [Pg.136]    [Pg.165]    [Pg.107]    [Pg.251]    [Pg.444]    [Pg.230]    [Pg.21]    [Pg.6]    [Pg.444]    [Pg.123]    [Pg.123]    [Pg.142]    [Pg.127]    [Pg.126]    [Pg.161]    [Pg.142]   
See also in sourсe #XX -- [ Pg.41 ]



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