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

Spectroscopy is a well-established nonintrusive tool that has played an important role in
identifying and quantifying substances, from quantum descriptions to chemical and …

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

Cavity ring-down spectroscopy (CRDS), first pioneered in 1988 by O'Keefe and Deacon, 1
has evolved into a newgeneration, precision spectroscopy in recent years and subsequently …

Accurate parameters of molecular hot-band transitions, ie, those starting from vibrationally
excited levels, are needed to accurately model high-temperature spectra in astrophysics and …

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

Infrared absorption spectroscopy (IAS) is currently a powerful tool for gas sensing. Gas
sensors based on IAS show advantages of high sensitivity, good selectivity and in-situ …

Optical activity (OA) spectroscopy is a powerful tool to characterize molecular chirality,
explore the stereo-specific structure and study the solution-state conformation of …

Cavity ring-down spectroscopy is a ubiquitous optical method used to study light-matter
interactions with high resolution, sensitivity and accuracy. However, it has never been …

Dual-comb spectroscopy has been developed into a high-precision technique that is
capable of sensing many important species of samples, such as methane. Recent studies on …