Recent content by serenade

The question can be misunderstood. I know I = I0*(w/w0)^2*int(r*exp(-2r^2/w^2)*int(-2t^2/tho_laser) and F = I*tho_laser. My question is how or.. can I find F(r) from F(r_i, r_i+1) [the equation above] ?

Hi, Energy density of the ith annular section of a Gaussian pulse is written as F(r_i, r_i+1)=2*totalEnergy/[(r_i+1^2-r_i^2)*w^2]*integral(r*exp(-r^2/w^2),from r_i to r_i+1) where r spans from r=0 to r=r_n (theoretically infinity) in n steps, w is the waist size of the beam. This...