Mach–Zehnder Optical Reference Beam Interferometry
1.1 Using Mach–Zehnder Interferometers for Recording Focused Image Interferograms
The Mach–Zehnder interferometer was designed over 100 years ago1,2 and up to now remains one of the most popular optical schemes for recording classic interferograms.
The standard optical scheme of a classic Mach–Zehnder interferometer, representing the division of amplitude interferometers, consists of two plane 100% reflection mirrors and two identical plane beam-splitting semitransparent mirrors. These four optical elements are located in the corners of a rhombus or a rectangle. It is convenient to replace the two semitransparent mirrors (or really optical wedges) with beam-splitting cubes as shown in ...
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