THz precision spectroscopy is a hot research topic. We present a metrological-grade hybrid dual comb spectrometer merging the high emitted power of a THz-QCL frequency comb, with the accuracy and absolute frequency scaling of an optically rectified THz comb, locked against a frequency reference.

My name is Lara Martini, I am a doctorate student from Argentina and I attended the 2020 SPIE Photonics West conference in San Francisco from February 1 to 6 thanks to the Early Career Researchers Travel Grant, from Communications Physics!