Cavity-enhanced direct frequency comb spectroscopy combines broad spectral bandwidth,
high spectral resolution, precise frequency calibration, and ultrahigh detection sensitivity, all …

Besides serving as a frequency counter or clockwork, an optical frequency comb can be
used directly for spectroscopy, thus the name Direct Frequency Comb Spectroscopy (DFCS) …

The sensitivity of molecular fingerprinting is dramatically improved when the absorbing
sample is placed in a high-finesse optical cavity, because the effective path length is …

Molecular fingerprinting using absorption spectroscopy is a powerful analytical method,
particularly in the infrared, the region of intense spectral signatures. Fourier transform …

Broad-bandwidth, high-spectral-resolution optical detection of human breath has identified
multiple important biomarkers correlated with specific diseases and metabolic processes …

We demonstrate the supercontinuum (SC) generation in a suspended-core As_2S_3
chalcogenide microstructured optical fiber (MOF). The variation of SC is investigated by …

We numerically report super-flat coherent mid-infrared supercontinuum (MIR-SC) generation
in a chalcogenide As_38. 8Se_61. 2 photonic crystal fiber (PCF). The dispersion and …

The mid-infrared part of the electromagnetic spectrum is the so-called molecular fingerprint
region because gases have tell-tale absorption features associated with molecular …

Supercontinuum radiation sources are attractive for spectroscopic applications owing to their
broad wavelength coverage, which enables spectral signatures of multiple species to be …

Although heretofore unrealized, it has long been known the rotational fingerprints of gases
that occupy the submillimeter/terahertz (SMM/THz) spectral region can provide a basis for …