Fig. 6: Polarized Raman spectroscopy for method 2 geometry.
From: Identification of phonon vibrational modes for the layered Ta2Se metal-rich chalcogenide
a Schematic of the polarized Raman spectroscopy configuration, which includes the half-wave plate located between the filter and microscope. b Incident and c scattered polarization directions on the Ta2Se microscopy image, corresponding to perpendicular and parallel analyzer polarizations, respectively. The black lines indicate the x and y axes, while the red and blue lines represent the incident and scattered polarization directions, respectively. Color and polar plots of the polarized Raman intensities for the configurations in d perpendicular and e parallel orientations, following method 2. Theoretical fitting curves are marked as red ones in polar plots.
