Question
Obtain an expression for elliptically polarised light resulting due to superposition of two orthogonal linearly polarised light waves. Show that plane polarised light and circularly polarised light are special cases of elliptically polarised light.
Answer :
Word Count : 558
Consider two plane monochromatic light waves travelling in the same direction along the z–axis. Let the first wave be linearly polarised along the x–axis and the second wave be linearly polarised along the y–axis, such that their planes of polarisation are mutually perpendicular. The electric field components of the two waves can be written as Ex = a cos (ωt – kz) Ey = b cos (ωt – kz + δ) where a and b are the amplitudes of the two waves, ω is the angular frequency, k is the propagation constant and ________ _____ _____ _________ ____ _______ ___ ___ _____ ______ __________.
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Consider two plane monochromatic light waves travelling in the same direction along the z–axis. Let the first wave be linearly polarised along the x–axis and the second wave be linearly polarised along the y–axis, such that their planes of polarisation are mutually perpendicular. The electric field components of the two waves can be written as Ex = a cos (ωt – kz) Ey = b cos (ωt – kz + δ) where a and b are the amplitudes of the two waves, ω is the angular frequency, k is the propagation constant and ________ _____ _____ _________ ____ _______ ___ ___ _____ ______ __________.
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