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Determining the wavelength of the light of an He-Ne laser using a Michelson interferometer

Determining the wavelength of the light of an He-Ne laser using a Michelson interferometer

VP5.3.4.2

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Description

In the experiment P5.3.4.2, the wavelength of an He-Ne laser is determined from the change in the interference pattern when moving an interferometer mirror using the shifting distance Δs of the mirror. During this shift, the interference lines on the observation screen move. In evaluation, either the interference maxima or interference minima passing a fixed point on the screen while the plane mirror is shifted are counted. For the wavelength λ, the following equation applies:

Components of equipment sets

1	47340 8	Laser optics base plate
1	471832	He-Ne laser, unpolarised
1	473412	Laser mount
5	473421 8	Optics base
1	473432 4	Beam divider, 50 %
1	473431 8	Holder for beam divider
2	473461 8	Planar mirror with fine adjustment
1	473471	Spherical lens, f = 2.7 mm
1	47348 8	Fine adjustment mechanism
1	44153 8	Screen, translucent
1	30011 4	Saddle base
1	31102 4	Metal rule, 1 m

Experiment Instructions

PDF (Experiment description)

P5.3.4.2 Determining the wavelength of the light of an He-Ne laser using a Michelson interferometer

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Determining the wavelength of the light of an He-Ne laser using a Michelson interferometer

Description

Components of equipment sets

Experiment Instructions

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