TERAHERTZ SPECTRUM MEASUREMENT SYSTEM AND METHOD FOR ANALYZING TERAHERTZ SPECTRUM OF SUBSTANCE

摘要

A terahertz spectrum measurement system and a method for analyzing a terahertz spectrum of a substance. The terahertz spectrum measurement system comprises: two terahertz quantum cascade lasers (1), emission ports of which face each other; and a vacuum hood provided between the emission ports of the two terahertz quantum cascade lasers (1). The terahertz spectrum measurement system and the method for analyzing a terahertz spectrum of a substance can retain the advantages of an on-chip dual frequency comb system, and further solve the problem that the terahertz spectrum of the substance cannot be directly measured by means of an on-chip dual frequency comb.