What do these submaxima represent - Interference Pattern

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The discussion centers on understanding the secondary maxima in interference patterns, specifically in the context of multiple slits. Participants clarify that these secondary maxima occur due to partially constructive interference, where the path length differences between light rays lead to varying intensity levels. The relationship between interference and diffraction patterns is explored, with emphasis on how the individual slit characteristics influence the overall pattern. The conversation also touches on the mathematical foundations of these phenomena, including Fourier transforms and phasor diagrams, to explain the observed intensity variations. Ultimately, the existence of secondary maxima is linked to the complex interplay of constructive and destructive interference among multiple light sources.
  • #31
In my notation ##I_0## is the intensity at ##x=0##. Just expand around ##x=0##, which gives
$$I(x) = I_0 + \mathcal{O}(x^2).$$
That's why I've put the ##1/N^2## factor in my formula.

See also the figures on p. 161 of my manuscript, cited already above.
 
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