Table 1. Summary of the experimental results.

In each experimental groupings A,B the number of molecules (N) increases while the ratio of photons to molecules remains constant (r ≈ 0.105 and 2.4, respectively). The rise time τ is defined by the time to reach E_max/2, where E_max is the peak stored energy per molecule or energy density. The charging rate P_max = max(dE/dt) is the peak charging power per molecule or charging power density.

Exp.	N(×1010)	τ (ps)	Emax (eV)	Pmax (eV/ps)
A1	16.0	0.094	0.108	0.791
A2	8.1	0.120	0.076	0.412
A3	1.6	0.118	0.011	0.060
B1	0.16	0.114	0.184	1.008
B2	0.21	0.105	0.037	0.221