Determination of the line splitting of two spectral lines using a Michelson interferometer

VP5.3.4.6
Determination of the line splitting of two spectral lines using a Michelson interferometer
Determination of the line splitting of two spectral lines using a Michelson interferometer

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Description

In the experiment P5.3.4.6 the mean wavelength λ and the line splitting Δλ of the yellow line doublet is determined. For two different proximate wavelengths λ1 and λ2 the coherent superposition of two beams leads to a beating: At distinct path length differences the contrast between bright and dark rings of the interference pattern is big while for other path length differences the contrast vanishes completely.

Components of equipment sets

1 451062  8  Spectral lamp, Hg 100 LD
1 45116  8  Housing for spectral lamps LD
1 45130  4  Universal choke, 230 V, 50 Hz LD
1 46032  8  Optical bench with standardised profile, 1 m LD
1 460373 Optics rider, 60/50 LD
7 460374  8  Optics rider, 90/50 LD
1 460380  8  Cantilever arm LD
2 473461  8  Planar mirror with fine adjustment LD
1 47348  8  Fine adjustment mechanism LD
1 47188  8  Beam splitter LD
2 46026  8  Iris diaphragm LD
1 46830  4  Light filter, yellow LD
1 46022  4  Holder with spring clips LD
1 44153  8  Screen, translucent LD
1 30011  4  Saddle base LD
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