Optical Constants of Crystalline Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ by Brillouin Light Scattering Spectroscopy

B. D. E. McNiven, J. P. F. LeBlanc, G. T. Andrews

Room-temperature optical constants of crystalline Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ were determined using data extracted from Brillouin light scattering spectra. Optical extinction coe…