PHYSICS · Subjective · Fermi University Physics · Optics & Photonics · Wave propagation and light in media · Interference and diffraction
What an Instrument Can See, Ch Multiple beams: the stack as a matrix and the etalon as a filter
Problem
A single quarter-wave layer of MgF2 (nf=1.38, real, lossless) is deposited directly on a gold mirror whose complex refractive index at λ=600 nm is n~s=0.35+2.70i (given). Light in air (n0=1) is incident normally. Using the characteristic matrix of the quarter-wave layer terminated by the absorbing substrate, find the power reflectance R.