Figure 1 | Scientific Reports

Figure 1

From: High-resolution imaging enabled by 100-kW-peak-power parametric source at 5.7 THz

Figure 1

Schematic of the high-power THz parametric source using KTP as the gain crystal. The system consists of (a) a parametric amplifier (PA) for generating a strong Stokes pulse and (b) a subsequent difference frequency generator (DFG) for mixing the pump and Stokes pulses to generate high-power THz radiation. The pump pulses are generated by an amplified, passively Q-switched, single-longitudinal-mode laser at 1064 nm.

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