• 🔆 Maxwells equations
• Snell's law
• Intensity due to polarising filter
• Thickness ($t$) for circular polarised light
• For anisotropic material the path difference $\Delta \lambda$ and phase shift $\Delta \phi$ are
• Coherence length of a laser
• For Fabry-Perot:
• Fourier transform
• Michelson interferometer spectrograph: $I_s(k)=I\delta(k-k_1)$ → $E=\sqrt{I}(1+e^{ikd})e^{i(kz-\omega t)}$
• Typical formulas
• Sin and Cos identities
• Rayleigh criterion for resolution
• Wollaston prism deviation angle
• Fresnel number