## 3 Results and Discussion
### Ti:Sapphire  
The Ti:Sapphire femtosecond laser created deep incisions with roughly Gaussian profiles (Figure 6). The Gaussian profile is a de facto imprint of the intensity profile of the laser beam [78; 79]. Pictures of the laser spots are depicted in Figure 7. The mean values of the depth and the width of the laser incisions for chondritic meteorites are about 60 \(\upmu\)m and 90 \(\upmu\)m, respectively. In the case of the Sikhote-Alin iron meteorite, the incisions are shallower (only about 20 \(\upmu\)m). The mean excitation temperature for Ti:Sapphire was estimated at 9700 K. The value for ionization temperature was slightly lower, i.e., 9500 K, while the mean thermodynamic temperature was calculated at 23,000 K, similar to the PALS laser. The electron density reached the order of 10\({}^{16}\)-10\({}^{17}\) cm\({}^{-3}\).  
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \multirow{2}{*}{**Experiment**} & \multirow{2}{*}{**Focus (mm\({}^{2}\))**} & \multirow{2}{*}{**Energy (J)**} & \multirow{2}{*}{**Fluence (J/mm\({}^{2}\))**} & \multicolumn{2}{c}{**Plasma**} & \multirow{2}{*}{**Streak**} & \multicolumn{1}{c}{**Time**} & \multirow{2}{*}{**Sweep**} \\  & & & & **(J/mm\({}^{2}\))** & & & **Range (ns)** & & **Resolution** \\ \hline SAU\_571\_37 & 0.785 & 473 & 602 & 390 & 500 & 1.9 & 0.539 \\ SAU\_571\_38 & 0.785 & 650 & 828 & 570 & 500 & 1.9 & 0.539 \\ SAU\_571\_39 & 0.785 & 397 & 505 & 530 & 500 & 1.9 & 0.539 \\ SAU\_571\_41 & 0.785 & 202 & 257 & 490 & 500 & 1.9 & 0.539 \\ SAU\_571\_42 & 0.785 & 133 & 169 & 850 & 500 & 1.9 & 0.539 \\ NWA\_11273\_43 & 0.785 & 277 & 353 & 580 & 500 & 1.9 & 0.539 \\ NWA\_11273\_48 & 0.785 & 284 & 362 & 760 & 500 & 1.9 & 0.539 \\ NWA\_12269\_49 & 0.785 & 412 & 525 & 490 & 500 & 1.9 & 0.539 \\ NWA\_12269\_50 & 0.785 & 409 & 521 & 500 & 500 & 1.9 & 0.539 \\ NWA\_12269\_51 & 0.785 & 403 & 513 & 530 & 500 & 1.9 & 0.539 \\ NWA\_12269\_52 & 0.785 & 400 & 509 & 520 & 500 & 1.9 & 0.539 \\ NWA\_12269\_53 & 0.785 & 390 & 497 & 930 & 200 & 0.8 & 0.213 \\ NWA\_12269\_55 & 0.785 & 392 & 499 & 970 & 200 & 0.8 & 0.213 \\ SAU\_567\_60 & 0.785 & 415 & 528 & 680 & 200 & 0.8 & 0.213 \\ SAU\_567\_61 & 0.785 & 218 & 278 & 700 & 200 & 0.8 & 0.213 \\ SAU\_567\_63 & 0.785 & 221 & 281 & 640 & 200 & 0.8 & 0.213 \\ SAU\_567\_62 & 0.785 & 219 & 279 & 680 & 100 & 0.4 & 0.103 \\ SAU\_567\_64 & 0.785 & 215 & 274 & 540 & 100 & 0.4 & 0.103 \\ SAU\_567\_65 & 0.785 & 218 & 277 & 600 & 100 & 0.4 & 0.103 \\ \hline \end{tabular}  
* \({}^{1}\) Colors represent individual meteorite samples. \({}^{2}\) Red lines mark a change in streak camera parameters. \({}^{3}\) The uncertainty of the results obtained with streak camera is \(<\)10%.  
\end{table}
Table 3: Plasma plume longitudinal expansion velocities for four different meteorite samples, together with the laser’s experimental parameters and the streak camera settings \({}^{1,2}\).  
Figure 6: Gaussian profile of the Ti:Sapphire femtosecond laser ablation spot on the chondritic meteorite Dho 1709 (**panel A**). Intensity profile of the femtosecond laser employed (**panel B**). Sectional view of the ablation incision on the chondritic meteorite Dho 1709, obtained via profilometry (**panel C**).