Fig. 4

(a) Schematic of a THz imaging on TBC sample with topcoat, bond coat and substrate, (b) Experiment setup of THz imaging of TBC sample showing transmitter (Tx) and receiver (Rx).

(a) Schematic of a THz imaging on TBC sample with topcoat, bond coat and substrate, (b) Experiment setup of THz imaging of TBC sample showing transmitter (Tx) and receiver (Rx).