Intensity autocorrelation
= Intensity autocorrelation
A diagnostic proportional to $\int I(t)I(t-\tau)\,dt$ for delay $\tau$. It does not uniquely reconstruct a complex optical <electric field>; extracting pulse duration requires a shape model.
= Intensity autocorrelation
A diagnostic proportional to $\int I(t)I(t-\tau)\,dt$ for delay $\tau$. It does not uniquely reconstruct a complex optical <electric field>; extracting pulse duration requires a shape model.