PPT Slide
How does the Michelson interferometer work?
- As the name implies, it relies on interference of the infrared waves.
- At the interferometer, the light strikes a beam splitter which passes 50% of the light to mirror 1 and 50% of the light to mirror 2.
- Mirror 1 is a moving mirror, which oscillates back and forth, whereas mirror 2 is stationary.
- On reflection from these mirrors, the beam splitter recombines the light which is then guided on towards the sample.
- This light is absorbed by the sample, and passes to the detector as usual.