Beam splitter applications

Beamsplitters have been used in ideological and real-world experiments in the physical fields of quantum theory and relativity. These include:

(1) The 1851 Fizeau experiment measures the speed of light in water;

(2) The Michelson-Morley experiment of 1887 measures (assumed) the effect of luminescent ether on the speed of light;

(3) The 1935 Hamar experiment refutes Dayton Miller's claim to the positive results of the repeat Michelson-Molly experiment;

(4) The 1932 Kennedy-Thornick experiment tests the independence of the speed of light and the speed of the measuring instrument;

(5) Bell test experiment (from about 1972) demonstrates the consequences of quantum entanglement and excludes the theory of local implicit variables;

(6) Wheeler's delayed selection experiment of 1978, 1984, etc. to test what makes photons as waves;

(7) Test Penrose interpretation of the FELIX experiment (proposed in 2000) Quantum superposition depends on the curvature of space-time;

(8) Mach-Zehnder interferometer for various experiments, including Elitzur-Vaidman bomb tester