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Determination of the coherence time and the line width of spectral lines with the Michelson interferometer /
Determination of the coherence time and the line width of spectral lines with the Michelson interferometer

Determination of the coherence time and the line width of spectral lines with the Michelson interferometer

VP5.3.4.4

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Description

In the experiment P5.3.4.4 the wavelength λ of the green spectral line of a Hg spectral lamp is determined. To measure the coherence length the positions of the movable plane mirror are measured where interference can barely be seen. From the difference in path length the coherence length Δs_C, the coherence time Δt_C and the line width Δν of the spectral line are determined.

Components of equipment sets

1	451062 8	Spectral lamp, Hg 100
1	45116 8	Housing for spectral lamps
1	45130 4	Universal choke, 230 V, 50 Hz
1	46032 8	Optical bench with standardised profile, 1 m
1	460373	Optics rider, 60/50
7	460374 8	Optics rider, 90/50
1	460380 8	Cantilever arm
2	473461 8	Planar mirror with fine adjustment
1	47348 8	Fine adjustment mechanism
1	47188 8	Beam splitter
2	46026 8	Iris diaphragm
1	46883	Interference filter 546 nm, 50 x 50 mm²
1	46022 4	Holder with spring clips
1	44153 8	Screen, translucent
1	30011 4	Saddle base

Experiment Instructions

PDF (Experiment description)

P5.3.4.4 Determination of the coherence time and the line width of spectral lines with the Michelson interferometer

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Determination of the coherence time and the line width of spectral lines with the Michelson interferometer

Description

Components of equipment sets

Experiment Instructions

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