Fig. 6From: Dispersion of Phonon Surface Polaritons in ZnGeP2: Anisotropy and Temperature ImpactsDispersion of the PSP in ZnGeP2, C||z. “Real” PSP: 1 300 K, 2 4 K; “virtual” PSP: 3, 5, 7, 9 300 K, 4, 6, 8, 10 4 K, 11 “light line”Back to article page