The quest towards the integration of ultra-fast, high-precision optical clocks is reflected in the
large number of high-impact papers on the topic published in the last few years. This interest …

We review the most recent progress in ultralow-noise mode-locked fiber lasers and fiber-
based frequency-comb sources. With the rapid progress in theory, measurement, and …

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 …

Ultrafast fibre lasers are fundamental building blocks of many photonic systems used in
industrial and medical applications as well as for scientific research. Here, we review the …

Group IV photonics hold great potential for nonlinear applications in the near-and mid-
infrared (IR) wavelength ranges, exhibiting strong nonlinearities in bulk materials, high index …

Breath analysis enables rapid, noninvasive diagnostics, as well as long-term monitoring of
human health, through the identification and quantification of exhaled biomarkers. Here, we …

The vast majority of gaseous chemical substances exhibit fundamental rovibrational
absorption bands in the mid-infrared spectral region (2.5–25 μm), and the absorption of light …

We achieve a quantum-noise-limited absorption sensitivity of 1.7× 10-12 cm-1 per spectral
element at 400 s of acquisition time with cavity-enhanced frequency comb spectroscopy, the …

We review progress, since publication of the book``Collisional effects on molecular spectra:
Laboratory experiments and models, consequences for applications"(Elsevier, Amsterdam …

We demonstrate the first cavity-enhanced optical frequency comb spectroscopy in the mid-
infrared wavelength region and report the sensitive real-time trace detection of hydrogen …