Multiply subtractive generalized Kramers-Kronig relations: application on third harmonic generation susceptibility on polysilane

Valerio Lucarini, Jarkko J. Saarinen, Kei-Erik Peiponen

We present multiply subtractive Kramers-Kronig (MSKK) relations for the moments of arbitrary order harmonic generation susceptibility. Using experimental data on third-harmonic wav…