LIGO Phase Shifts
Classical Mechanics
Level
3
If the laser light used in Advanced LIGO is \(1064 \text{ nm}\), an arm of the detector is \(4 \text{ km}\) long, and the GW150914 system causes strains \(h = 10^{-21}\), what is the phase shift in laser light traversing a detector arm at maximum displacement versus no displacement, in radians?
See: Gravitational Waves.
by
Matt DeCross