Data of Figure 4 uses: DFB data figure 4 Data of Figure 5a uses: DFB data figure 5 a and b Data of Figure 5b uses: DFB data figure 5 a and b Data of Figure 5c uses: DFB data figure 5 c Data of Figure 5d uses: DFB data figure 5 d Beam spot size and fluence data: DFB data beam spot size and fluence