Figure 2From: Tunable nonlinear optical properties in nanocrystalline Si/SiO2 multilayers under femtosecond excitationOptical absorption spectra of samples A to D. As-deposited Si/SiO2 multilayers (sample A) and samples after annealing with various temperatures (B: 800°C, C: 900°C, D: 1,000°C).Back to article page