<Dd> E θ 0 = 2 2 (e − i θ 0 E R H C + e i θ 0 E L H C), (\ displaystyle \ mathbf (E) _ (\ theta _ (0)) = (\ frac (\ sqrt (2)) (2)) (e ^ (- i \ theta _ (0)) \ mathbf (E) _ (RHC) + e ^ (i \ theta _ (0)) \ mathbf (E) _ (LHC)) \, \,,) </Dd> <P> where E θ 0 (\ displaystyle \ mathbf (E) _ (\ theta _ (0))) is the electric field of the net wave, while E R H C (\ displaystyle \ mathbf (E) _ (RHC)) and E L H C (\ displaystyle \ mathbf (E) _ (LHC)) are the two circularly polarized basis functions (having zero phase difference). Assuming propagation in the + z direction, we could write E R H C (\ displaystyle \ mathbf (E) _ (RHC)) and E L H C (\ displaystyle \ mathbf (E) _ (LHC)) in terms of their x and y components as follows: </P> <Dl> <Dd> E R H C = 2 2 (x ^ + i y ^) (\ displaystyle \ mathbf (E) _ (RHC) = (\ frac (\ sqrt (2)) (2)) ((\ hat (x)) + i (\ hat (y)))) </Dd> </Dl> <Dd> E R H C = 2 2 (x ^ + i y ^) (\ displaystyle \ mathbf (E) _ (RHC) = (\ frac (\ sqrt (2)) (2)) ((\ hat (x)) + i (\ hat (y)))) </Dd>

How to measure the angle of rotation of polarised light