Interferential devices
Mach-Zehnder Interferometer
Mach-Zehnder interferometer is composed of a light source, of a collimator, of two reflecting plan mirrors, of two half-reflecting blades and a screen. The interferometer geometry imposes its symmetry. Figure 13 describes the experimental device.
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We can notice an analogy with the Michelson case with plane waves. Figures observed are equal to those of Figure 12 when we switch one interferometer mirror or both.