*4.2. LID: Absorption Properties of the Films*

Figures 6–8 give the film absorptance as a function of the laser intensity for the three investigated TiO2 films. Table 6 summarizes the linear absorptance and the TPA coefficients.

**Figure 6.** Absorptance versus laser intensity and the TPA coefficient for sample 1.

**Figure 7.** Absorptance versus laser intensity and the TPA coefficient for sample 2.

**Figure 8.** Absorptance versus laser intensity and the TPA coefficient for sample 3.


**Table 6.** LID results.

### **5. Discussion**
