The refractive index spectra of SrRuO3 in the optical frequency range is known. But in the terahertz frequency range the refractive index even the dielectric constant of the SrRuO3 is unknown.
Thanks for your reply. I am also started work on SrRuO3 thin film. I don't have any information regarding the refractive index or dielectric spectra of SrRuO3 in the terahertz frequency range. I just want to know that thing.