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Rayleigh interferometer at the National Bureau of Standards. In optics, a Rayleigh interferometer is a type of interferometer which employs two beams of light from a single source.
Figure 1. The light path through a Michelson interferometer.The two light rays with a common source combine at the half-silvered mirror to reach the detector. They may either interfere constructively (strengthening in intensity) if their light waves arrive in phase, or interfere destructively (weakening in intensity) if they arrive out of phase, depending on the exact distances between the ...
Lateral shearing interferometry is a self-referencing method of wavefront sensing. Instead of comparing a wavefront with a separate path reference wavefront, lateral shearing interferometry interferes a wavefront with a shifted version of itself. As a result, it is sensitive to the slope of a wavefront, not the wavefront shape per se. The ...
Interferometry has been used for various quantitative characterisation of optical systems indicating their overall performance. Traditionally, Fizeau interferometers have been used to detect optical or polished surface forms but new advances in precision manufacturing has allowed industrial point diffraction interferometry possible. PDI is ...
Mach–Zehnder interferometry has been demonstrated with electrons as well as with light. [3] The versatility of the Mach–Zehnder configuration has led to its being used in a range of research topics efforts especially in fundamental quantum mechanics.
Seismic interferometry; Self-mixing interferometry; Single-shot multi-contrast X-ray imaging; Speckle interferometry; Spectral interferometry; Spectral phase interferometry for direct electric-field reconstruction; SU(1,1) interferometry
The effect is a consequence of the different times it takes right and left moving light beams to complete a full round trip in the interferometer ring. The difference in travel times, when multiplied by the optical frequency c / λ , {\displaystyle c/\lambda ,} determines the phase difference Δ ϕ . {\displaystyle \Delta \phi .}
Principle of the shearing interferometer. The shearing interferometer is an extremely simple means to observe interference and to use this phenomenon to test the collimation of light beams, especially from laser sources which have a coherence length which is usually significantly longer than the thickness of the shear plate (see graphics) so that the basic condition for interference is fulfilled.