Optical interferometer

VP5.8.3.1
Optical interferometer
Optical interferometer

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Description

While the Michelson interferometer is mainly used to determine the movement of a reflecting object in a nm scale, the Mach-Zehnder interferometer investigates transparent objects and is particularly useful for studying liquid or gas dynamics. Since the Mach-Zehnder is a unidirectional interferometer it is especially useful for measurements where the samples have to be traversed only once or in one direction.
Within the frame of the experiment P5.8.3.1 both, a Michelson- and a Mach-Zehnder interferometer will be realized. The former demonstrates the principle generation of interference patterns and the use of fringe counting in metrology. The latter uses the interference pattern to visualize changes of the index of refraction as a result of changes in physical properties of gasses, like pressure or composition.

Components of equipment sets

1 4745220 Biconcave Lens f = -10 mm, C25 mount LD
1 4745264 Beam expander 2.7x LD
1 474169 Gas Cuvette Assembly LD
1 474171 Mach Zehnder Beam Combining Assembly LD
1 474174 Mach-Zehnder Beam Splitting Assembly LD
1 4745457 Screen with rider LD
1 4745418 Diode Laser Module 532 nm LD
2 4745441 Profile Rail, 300 mm LD
1 4745442  4  Profile rail 500 mm LD
1 4745449 Angle Joint, Cross Piece LD
3 474209  8  Mounting Plate C25 with Carrier 20 mm LD
1 4742112 Adjustment holder, 4 axes, with stop angle LD
1 474213 Adjustment Holder 1 inch, left LD
2 474251  8  Transport and Storage Box #01 LD
1 4747210  4  LIT: Optical Interferometer LD
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