Figure 20

Typical spectra of PMMA plasma irradiated by a single pulse and a double pulse with the same total fluence of 7.8 J cm−2. Reproduced from Ref. 134 (with the permission of SPIE).
Typical spectra of PMMA plasma irradiated by a single pulse and a double pulse with the same total fluence of 7.8 J cm−2. Reproduced from Ref. 134 (with the permission of SPIE).