Beam & Optics
Focused Spot
Spot size of a lens-focused beam at the diffraction limit.
2w₀ = (4·λ·f) / (π·D)
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.