“…For silicon, although its thermal conductivity (~150 W/m-K) is lower than that of aluminum, it has a higher melting temperature ( 1400 ºC); the combination of these two properties also make silicon's ablation rate or depth is similar to that of aluminum. On the other 12 and Shen, et al 13 hand, not only the thermal conductivity of glass (~1.0 W/m-K) is significantly lower than silicon and aluminum, but also its melting or glass transition temperature (~700 ºC) is much lower than the melting temperature of silicon and about the same as the aluminum. As a result, among the three materials considered, the glass exists the best ablation efficiency and should be a good candidate for laser ablation.…”