Abstract

The effect of finite aperture of a Fabry Perot interferometer on the fringe intensity distribution in the interferometer pattern is investigated. An equation is derived for a square etalon which illustrates clearly the decrease in fringe intensity for increasing angles of incidence. The computations show that this effect becomes significant only for high reflecting powers and comparatively large plate separations.

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  1. S. Tolanskv, High Resolution Spectroscopy (Pitman Publishing Corporation, New York, 1947), Chapter VII, p. 98.
  2. See reference 1, Chapter IX, p. 161.
  3. In Fig. 1 and elsewhere, whereas δ is the phase difference between strictly consecutive reflections, references to successively reflected beams, and to the nth and pth reflected beams apply, not to strictly consecutive reflections, but to consecutive beams reflected at the first plate and transmitted through the second to the camera.

Tolanskv, S.

S. Tolanskv, High Resolution Spectroscopy (Pitman Publishing Corporation, New York, 1947), Chapter VII, p. 98.

Other (3)

S. Tolanskv, High Resolution Spectroscopy (Pitman Publishing Corporation, New York, 1947), Chapter VII, p. 98.

See reference 1, Chapter IX, p. 161.

In Fig. 1 and elsewhere, whereas δ is the phase difference between strictly consecutive reflections, references to successively reflected beams, and to the nth and pth reflected beams apply, not to strictly consecutive reflections, but to consecutive beams reflected at the first plate and transmitted through the second to the camera.

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