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Construction of a Tabletop Michelson Interferometer (view source)
Revision as of 20:16, 29 April 2010
, 20:16, 29 April 2010no edit summary
The two order of magnitude shortfall means that very little of the dynamic range of the sensor will be used, leading to a low signal to noise ratio. For this reason, a 5mW laser was chosen over a 1mW.
The two order of magnitude shortfall means that very little of the dynamic range of the sensor will be used, leading to a low signal to noise ratio. For this reason, a 5mW laser was chosen over a 1mW.
=== Choosing a pinhole ===
It is crucial that any spherical aberration are removed by way of pinhole. The laser spot is passed through a pinhole, which acts to expand the beam. This expansion creates a patter known as an Airy pattern[[ http://en.wikipedia.org/wiki/Airy_disk| Airy Pattern]].
* [[Huygens Principle for a Planar Source|Determining the angle of the diffraction minimum for a circular aperture]]
* [[Huygens Principle for a Planar Source|Determining the angle of the diffraction minimum for a circular aperture]]