Beam & Optics
Fresnel Reflection
Surface reflectance and transmittance at normal incidence.
R = ((n₂-n₁)/(n₂+n₁))²
Fill the inputs from a real part
Every number is read from that part's datasheet entry: peak power and pulse energy as rated, pulse width at the part's rated maximum.
Solve for
Inputs
Result
Live diagram
Drawn from the values above, redrawn as you type - the same physical schematic the mini-program shows.