Beam splitter
OverviewClassical lossless beam splitterDesignsPhase shiftUse in experimentsQuantum mechanical descriptionReflection beam splitters
For beam splitters with two incoming beams, using a classical, lossless beam splitter with electric fields Ea and Eb each incident at one of the inputs, the two output fields Ec and Ed are linearly related to the inputs through where the 2×2 element is the beam-splitter transfer matrix and r and t are the reflectance and transmittance along a particular path through the beam splitter, that path being indicated by the subsc