Table 1. Comparison of the OCT and THz imaging systems.

Imaging System	Wavelengths	Frequency	Lateral Resolution	Axial Resolution
OCT imaging	1310 nm	229 THz	25 µm (@1310nm)	∼11 µm (@1310nm)
THz imaging	5000 µm – 75 µm	0.06 THz – 4 THz	∼75 µm (@ 3 THz)	30 µm (@ 3 THz)