BACKGROUND The generation and control of coherent electromagnetic waves, such as
those provided by electronic oscillators in the radio frequency domain or lasers in the optical …

A laser frequency comb is a broad spectrum composed of equidistant narrow lines. Initially
invented for frequency metrology, such combs enable new approaches to spectroscopy over …

Dual-comb spectroscopy is an emerging new spectroscopic tool that exploits the frequency
resolution, frequency accuracy, broad bandwidth, and brightness of frequency combs for …

Mid-infrared spectroscopy offers supreme sensitivity for the detection of trace gases, solids
and liquids based on tell-tale vibrational bands specific to this spectral region. Here, we …

Mid-infrared dual-comb spectroscopy has the potential to supplant conventional Fourier-
transform spectroscopy in applications requiring high resolution, accuracy, signal-to-noise …

Dual-comb spectroscopy performed in the mid-infrared—where molecules have their
strongest rotovibrational absorption lines—offers the promise of high spectral resolution …

Increasing our understanding of regional greenhouse gas transport, sources, and sinks
requires accurate, precise, continuous measurements of small gas enhancements over long …

Dual-comb spectroscopy holds the promise as real-time, high-resolution spectroscopy tools.
However, in its conventional schemes, the stringent requirement on the coherence between …

Absorption spectroscopy of fundamental ro-vibrational transitions in the mid-infrared region
provides a powerful tool for studying the structure and dynamics of molecules in the gas …

The spectrum of a laser frequency comb consists of several hundred thousand equally
spaced lines over a broad spectral bandwidth. Such frequency combs have revolutionized …