If I'm heating (one-shot heating) a substrate with 300 mJ/cm2 pulse laser energy for the duration of 100 ns then what will be the final power received by the sample ?
Laser power (W) is defined by Energy (E Joule) per unit time (t in s), that is W=E (Joule)/t(s). Power density (I) = Power (W)/Area (cm2). For your case Power density (I) = 300x10EXP-3 / 24x 10EXP-9 (W/cm2). That is