# Stokes Parameters for the Superposition of Two Slightly Noncollinear Light Beams with Orthogonal Polarizations

Stokes Parameters for the Superposition of Two Slightly Noncollinear Light Beams with Orthogonal Polarizations

This Demonstration shows the effect of the parameters , , on two superposed slightly noncollinear electromagnetic field beams with orthogonal polarizations. The polarization vectors of the beams are given by (α,δ) and (α-π/2,δ), while their amplitude ratio is parametrized by . The spatially variable polarization state is given by the equation =(π-δ)(2α)cos(2β)+sin(2β] in terms of the great circle =cosΔΦ+sinΔΦ.

α

β

δ

ϵ

1

ϵ

2

β=(/)

-1

tan

E

1

E

2

s

R

s

1

R

s

2

s

1

g

,

g

s

2

s

3