Chip‐scale, electrically‐pumped terahertz (THz) frequency‐combs (FCs) rely on nonlinear
four‐wave‐mixing processes, and have a nontrivial phase relationship between the evenly …

Broadband, quantum-engineered, quantum cascade lasers (QCLs) are the most powerful
chip-scale sources of optical frequency combs (FCs) across the mid-infrared and the …

The ability to engineer quantum-cascade-lasers (QCLs) with ultrabroad gain spectra, and
with a full compensation of the group velocity dispersion, at terahertz (THz) frequencies, is …

Recently, the field of optical frequency combs experienced a major development of new
sources. They are generally much smaller in size (on the scale of millimetres) and can …

Dual-comb spectroscopy is emerging as an appealing application of mid-infrared frequency
combs for high-resolution molecular spectroscopy, as it leverages on the unique coherence …

Miniaturized frequency combs (FCs) can be self-generated at terahertz (THz) frequencies
through four-wave mixing in the cavity of a quantum cascade laser (QCL). To date, however …

Broadband metrological‐grade frequency comb (FC) synthesizers with a rich number of
phase locked modes are the ideal sources for quantum sensing and quantum metrology. At …

Terahertz quantum cascade laser sources based on intra-cavity difference frequency
generation from mid-IR devices are an important asset for applications in rotational …

An absolute-frequency terahertz (THz) dual-frequency comb spectrometer based on electro-
optic modulators for tunable, high-resolution, and real-time rapid acquisition is presented …

Miniaturization of frequency-comb sources could open a host of potential applications in
spectroscopy, biomedical monitoring, astronomy, microwave signal generation, and …