Optical spectroscopy has a broad scientific basis in chemistry, physics, and material science,
with diverse applications in medicine, pharmaceuticals, agriculture, and environmental …

Selectivity is one of the most crucial figures of merit in trace gas sensing, and thus a
comprehensive assessment is necessary to have a clear picture of sensitivity, selectivity …

Photoacoustic dual-comb spectroscopy (DCS), converting spectral information in the optical
frequency domain to the audio frequency domain via multi-heterodyne beating, enables …

Dual-comb spectroscopy (DCS) has revolutionized optical spectroscopy by providing
broadband spectral measurements with unprecedented resolution and fast response …

Optical cavities are essential for enhancing the sensitivity of molecular absorption
spectroscopy, which finds widespread high-sensitivity gas sensing applications. However …

The extension of dual-comb spectroscopy (DCS) to all wavelengths of light along with its
ability to provide ultra-large dynamic range and ultra-high spectral resolution, renders it …

Photoacoustic spectroscopy (PAS) using two optical combs is a new-born technique,
offering appealing features, including broad optical bandwidths, high resolutions, fast …

Spectrally resolved photoacoustic imaging is promising for label-free imaging in optically
scattering materials. However, this technique often requires acquisition of a separate image …

Photo-acoustic spectroscopy (PAS) is one of the most sensitive non-destructive analysis
techniques for gases, fluids and solids. It can operate background-free at any wavelength …

We demonstrate the application of mode-locked mid-infrared dual frequency comb
spectroscopy for combustion analysis. With two settings of the same dual-comb system, the …