Figure 1
From: Terahertz wave modulation enhanced by laser processed PVA film on Si substrate
(a) Schematic diagram that THz waves are incident into the LP-PVA/Si pumped by a modulated laser. (b) LP-PVA film thickness measured by the step profiler; Insets: 10 × 50 microscope photos of PVA film without and after laser heating process.
