The experimental results show that the optical path system successfully reshapes and compresses the pump light and couples it into the nonlinear crystal waveguide layer, and uses the shielding material to cooperate with the Gaolai box energy detector to detect the terahertz wave energy at the modulation frequency of the chopper. The experiment successfully obtained a terahertz radiation source, and the structure is compact, which can improve the portability of the system.
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