LIGO Document G2502341-v1

Michelson Interferometer Demo video

Document #:
LIGO-G2502341-v1
Document type:
G - Presentations (eg Graphics)
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Abstract:
This video shows the small Michelon interferometer demo that we take to LIGO exhibits. This uses a laser pointer and a compact 100-mm arm-length interferometer that fits in a transportable toolbox.

The shorter video explains the layout and simulates the effect of a gravitational wave by pulling by hand on a hair bungee connected to the y-arm mirror. A strain of 1.5e-6 results in displacement of the fringe pattern from bright to dark.

The longer video is meant for stand-along use with discussion of the numbers in more detail.

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