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(Color online) Calculated imaginary part of dielectric function of polymorphs and diamond. The inset shows that the experimental (black real line) and calculated (red dash line) of diamond.
(Color online) Dynamic third-order susceptibilities of diamond and polymorphs, respectively: (a) direction and (b) direction.
Lattice parameters and , band gap , plasma frequency , linear refractive index , and dielectric constant of diamond and four polymorphs.
The calculated third-order nonlinear optical parameters (units: for ; for ; for ; for MW) for diamond at an incident photon energy of and four polymorphs at an incident photon energy of .
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