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6D40.10 - Optical Interferometer

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​6D40.10 - Optical Interferometer

Preview
SelectSelected
Title6D40.10 - Optical Interferometer
Objective

Demonstrate interference w/ an optical interferometer.

StatusAvailable
Assembly Instructions

Instructions
Allow plenty of time for setting up as the interferometer adjustments are very touchy. Project the interference image onto the wall. The beam position is adjusted via the steering mirror. Adjust the beam expander and laser aperture to expand the beam. Use the adjustment post to assist in initial set up. Set the post in the centre of the field then adjust ONE of the mirrors to eliminate all ghosting in the image output. This accomplished, adjust the arm stage to obtain a good crisp pattern.

When using the butane lighter, do not allow a flame, only observe the gas jet.

When using the vacuum cell, the initial pattern adjustment should be large ie there should not be many fringes visible as when the cell is introduced into the beam path, the additional glass introduced from the cell windows, will change the pattern significantly.

Setup Time15
Operation Time1
Preview Time5
Operation Instructions
ExportableNo
Demo on DimeNo
PIRA 200Yes
Export Instructions (if different)
HazardsNone
Analysis/Information
Category6 Optics
Subcategory6D - Interference
Keywordsspatial filter, michelson interferometer, density gradient
Construction Information
 
  
  
optical interferometer
1
laser - green 5mW, mini, battery, with fixtures
1
optical cell assembly w/ syringe
1
beam expander
1
blocking plate
2
lighter
1
image screen & camera (optional)
1