Consider a Michelson interferometer as shown in the figure. Two mirrors, M1 and M2, are located at distances L1 and L2 # Lị away from the center of the beam splitter. M1 has a slight misalignment angle 0 from the horizontal direction. A plane wave is incident from the left. Sou (a) Calculate the spacing of the interference fringes on the screen. (b) If M2 is moving away from the mirror at a slow speed, v, the interference fringes will move as well. Find the direction and speed of the pattern motion.
Consider a Michelson interferometer as shown in the figure. Two mirrors, M1 and M2, are located at distances L1 and L2 # Lị away from the center of the beam splitter. M1 has a slight misalignment angle 0 from the horizontal direction. A plane wave is incident from the left. Sou (a) Calculate the spacing of the interference fringes on the screen. (b) If M2 is moving away from the mirror at a slow speed, v, the interference fringes will move as well. Find the direction and speed of the pattern motion.
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Transcribed Image Text:Consider a Michelson interferometer as shown in
the figure. Two mirrors, M1 and M2, are located
at distances Lị and L2 # L1 away from the center
of the beam splitter. M1 has a slight misalignment
angle 0 from the horizontal direction. A plane wave
is incident from the left.
M1
M2
Source
(a) Calculate the spacing of the interference fringes
on the screen.
Beam splitter
(b) If M2 is moving away from the mirror at a slow
speed, v,
Find the direction and speed of the pattern motion.
the interference fringes will move as well.
Screen
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