Yes. You can plot a graph between the normalized transmittance (from experimental z-scan data) and input fluence. The position-dependent laser input fluence can determined using the following equation:
F(z) = 4sqrt(ln2)Ein/(π3/2w(z)2)
where F(z) is the input laser fluence at sample position z, w(z) is the beam radius at z position, and Ein is the laser input energy. The value of input fluence at which the normalized transmittance is reduced to half of its initial value is given by the optical limiting threshold, which gives the limiting efficiency of the material. (Refer:Article Optical Power Limiting in Fluorinated Graphene Oxide: An Ins...
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Hakam Alboushi Output fluence can be obtained by taking the product of input fluence and normalized transmittance. Normalized transmittance value gives the percentage of light transmitted through the sample.
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