Figure 5
From: A monoclinic semiorganic molecular crystal GUHP for terahertz photonics and optoelectronics
Visualization of the low-frequency vibrational modes of A’ symmetry of GUHP crystal at 80K. The axes indicate crystallographic axes abc. 1a, 1b represent 1.040 THz mode for a and b cut crystal planes respectively. 2a, 2b represent 1.550 THz mode for the a and b cut crystal planes respectively.
