For 10 points, the Michelson design is typically used in what technique that observes "fringes" formed by two superimposed light waves?
The proposed Darwin and TPF projects would have used this technique to detect exoplanets. Strong signals can be selectively blocked in this technique in a process called "nulling." One can compensate for geometric delay in this technique using delay lines. The distance between two signal collectors in this technique is referred to as the "baseline." This technique allows an array of telescopes to act as a (*) single telescope with super-high resolution. A beam splitter followed by two perpendicular arms is a commonly-used design in this technique, which was used to obtain evidence of gravitational waves by LIGO. For 10 points, the Michelson design is typically used in what technique that observes "fringes" formed by two superimposed light waves?
The proposed Darwin and TPF projects would have used this technique to detect exoplanets.
interferometry [accept word forms like interferometer; accept nulling interferometry; accept VLBI or Very Long Baseline Interferometry]