Single-mode superfluorescence theory compared with experiment

We compare the experimental curves of Skribanowitz et al., showing superradiance from pumped HF gas, with the "single-mode" time-evolution formula of Bonifacio and Lugiato. All parameters are varied freely except the length $L$ of the sample. It is found impossible to obtain even rough agreement. When ${\tau }_c$ is taken longer than $\frac{L}{c}$, no ringing is predicted; when shorter, the predicted ringing is many times faster than that observed.