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Transmission Through a LiNb0 3 Plate

Examine the transmission of an unpolarized He-Ne laser beam (?o= 633 nm) normally incident on a LiNb0 3 plate (ne = 2.29, no = 2.20) of thickness 1 cm, cut such that its optic axis makes an angle 45° with the normal to the plate.

a) Determine the lateral shift at the output of the plate and the retardation between the ordinary and extraordinary beams.

b) Sketch the beams

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