Detector non-linearity is an important factor limiting the maximal power and hence the signal- to-noise ratio (SNR) in dual-comb interferometry. To increase the SNR without …
Dual-comb spectroscopy measures greenhouse gas concentrations over kilometers of open air with high precision. However, the accuracy of these outdoor spectra is challenging to …
We present the first systematic study of self-broadened CO 2 line shape parameters in the 00031← 00001 and 01131← 01101 bands at high temperature. We report temperature …
M Walsh, J Kasic, K Cossel, J Genest - Review of Scientific Instruments, 2024 - pubs.aip.org
The technique of performing interferometry with two optical frequency combs is used by an increasing number of research groups and even for field deployed commercial applications …
Fano resonance in molecular spectroscopy is reported with a dual-comb instrument. The effect is observed as asymmetric absorption lines of H^ 12CN. Pulse chirping conditions in …
We present an open-path mid-infrared dual-comb spectroscopy (DCS) system capable of precise measurement of the stable water isotopologues H 2 16 O and HD 16 O. This system …
SC Egbert, K Sung, SC Coburn, BJ Drouin… - Available at SSRN …, 2024 - papers.ssrn.com
We present broadband dual frequency comb laser absorption measurements of 2% H2O (natural isotopic abundance of 99.7% H216O) in air from 6600-7650 cm-1 (1307-1515 nm) …
Photodetector nonlinearity, the main limiting factor in terms of optical power in the detection chain, is corrected to improve the signal-to-noise ratio of a short-time measurement in dual …
Operation of any dual-comb spectrometer requires digitization of the interference signal before further processing. Nonlinearities in the analog-to-digital conversion can alter the …