user mat
USER
3 0
off - (hbar(1) )^2 / {epsz(0) * rho  * 1e-3 * tau *1e-15 * [ wvl*wvl + imag(wvl*hbar(1)*1e15 / tau)  ]  }
0
off 3.000000
tau 0.100000
rho 3.000000