Acoustic Phonon Dynamics and Optical Properties of Bi-2212 Crystals

Acoustic phonon behaviour and optical properties of bulk Bi-2212 crystals at room temperature were probed using Brillouin light scattering spectroscopy and refined optical contrast methods. Values for the complex refractive index at a wavelength of 532 nm are presented and, along with Brillouin peak frequency shift data, used to determine transverse and longitudinal acoustic phonon mode velocities in these crystals.