Mach-Zehnder interferometer

(redirected from Mach-Zender interferometer)

Mach-Zehnder interferometer

[′mäk ′tsān·dər ‚in·tər·fə′räm·əd·ər]
(optics)
A variation of the Michelson interferometer used mainly in measuring the spatial variation of the index of refraction of a gas; the device has two semitransparent mirrors and two wholly reflecting mirrors at alternate corners of a rectangle, and half the beam travels along each side of the rectangle. Also known as Mach refractometer.