5. Multi-wave interference
When more than two waves from the same source are superimposed at the same point in space, they form a more complicated interference phenomenon, known as multi-wave interference. The amplitude of the resultant can also be estimated by trigonometric calculations or geometrical constructions. By way of example, we deal with the interference given by three Young-type slits between three waves of the same amplitude and whose phases are in arithmetical progression. We then present results for more complex phenomena, such as diffraction gratings with a very large number of lines, and bangs produced by reflecting blades or Fabry-Perot interferometers.
5.1 Three-wave interference
Let's take the Young's slit setup again, with three slits separated by a distance a. At...
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
Multi-wave interference
Polarization interferometers
Article included in this offer
"Optics and photonics"
(
204 articles
)
Updated and enriched with articles validated by our scientific committees
A set of exclusive tools to complement the resources
Bibliography
In Engineering Techniques
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
