Hamamatsu Photonics has introduced a quantum cascade laser (QCL) module with a tunable frequency range from 0.42 to 2THz.
Hamamatsu’s breakthrough was achieved by analysing the principle governing the generation of terahertz waves, which enhance the QCL’s output power and the configuration of the highly efficient external cavity, while using our advanced optical design technology.
This research results in generating narrow-band terahertz waves all while switching the frequency of just one QCL module. This technology will help in polymer material identification as well as boost accuracy in quality evaluation for non-destructive inspection of drugs, foods, and semiconductors containing components that absorb terahertz waves. The QCL module using this technology will also prove to be a key innovative device for achieving future ultra-high-speed wireless communication.