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 …

Optical frequency combs were developed nearly two decades ago to support the world's
most precise atomic clocks. Acting as precision optical synthesizers, frequency combs …

When molecules are placed at the interface to metals or metal oxides, an increase in their
infrared (IR) spectral intensities is observed, a phenomenon termed surface-enhanced …

High-speed measurement confronts the extreme speed limit when the signal becomes
comparable to the noise level. In the context of broadband mid-infrared spectroscopy, state …

Infrared difference spectroscopy probes vibrational changes of proteins upon their
perturbation. Compared with other spectroscopic methods, it stands out by its sensitivity to …

Carbon nanofibers (CNFs) exhibit great potentials in the fields of materials science,
biomedicine, tissue engineering, catalysis, energy, environmental science, and analytical …

Frequency combs have revolutionized the field of optical spectroscopy, enabling
researchers to probe molecular systems with a multitude of accurate and precise optical …

Mid-infrared (MIR) spectrometers are invaluable tools for molecular fingerprinting and hyper-
spectral imaging. Among the available spectroscopic approaches, GHz MIR dual-comb …

To meet the challenges of high-resolution molecular spectroscopy, increasingly
sophisticated spectroscopic techniques were developed. For a long time FTIR and laser …

On-chip integration of optical comb sources is crucial in enabling their widespread use.
Integrated photonic devices that can be mass-manufactured in semiconductor processing …