| Glass | PMMA | Gold |
Wpl ± S.D. (J) | 1.5 ± 0.2 (×10−15) | 1.5 ± 0.3 (×10−12) | 8.1 ± 1.5 (×10−13) |
Vindent ± S.D. (m3) | 4.6 ± 0.6 (×10−23) | 1.1 ± 0.2 (×10−21) | 2.6 ± 0.4 (×10−22) |
Tpl ± S.D. (J/m3) | 0.33 ± 0.04 (×108) | 13 ± 3 (×108) | 31 ± 5 (×108) |