Maxwell's Equations

In Free Space
These are the Maxwell's Equations we will be using to solve for regions "I" and "II" in our approximation of the Michelson interferometer.

In the Presence of Charges and Dielectric Media
Where $$\boldsymbol{D} = \epsilon_0 \boldsymbol{E}$$ and $$\boldsymbol{B} = \mu_0 \boldsymbol{H}$$.