Frequency comb based four-wave-mixing spectroscopy

Bachana Lomsadze, Steven T. Cundiff

Published 2017-04-11Version 1

We experimentally demonstrate four-wave-mixing spectroscopy using frequency combs. The experiment uses a geometry where excitation pulses and four-wave-mixing signals generated by a sample co-propagate. We separate them in the radio frequency domain by heterodyne detection with a local oscillator comb that has a different repetition frequency.