Recent progress on laser absorption spectroscopy for determination of gaseous chemical species

B Fu, C Zhang, W Lyu, J Sun, C Shang… - Applied spectroscopy …, 2022 - Taylor & Francis
Laser absorption spectroscopy combined with spectral analysis has been extensively
investigated in detection and measurements of gas samples because of their broad …

An accurate, extensive, and practical line list of methane for the HITEMP database

RJ Hargreaves, IE Gordon, M Rey… - The Astrophysical …, 2020 - iopscience.iop.org
A methane line list for the HITEMP spectroscopic database, covering 0–13,400 cm− 1 (> 746
nm), is presented. To create this compilation, ab initio line lists of 12 CH 4 from Rey et al …

Ultrafast-laser-absorption spectroscopy in the mid-infrared for single-shot, calibration-free temperature and species measurements in low-and high-pressure …

RJ Tancin, CS Goldenstein - Optics Express, 2021 - opg.optica.org
This manuscript presents an ultrafast-laser-absorption-spectroscopy (ULAS) diagnostic
capable of providing calibration-free, single-shot measurements of temperature and CO at 5 …

Measurement and assignment of double-resonance transitions to the 8900–9100- levels of methane

A Foltynowicz, L Rutkowski, I Silander, AC Johansson… - Physical Review A, 2021 - APS
Optical-optical double-resonance spectroscopy with a continuous wave pump and
frequency comb probe allows measurement of sub-Doppler transitions to highly excited …

High‐Speed Fourier‐Transform Infrared Spectroscopy with Phase‐Controlled Delay Line

K Hashimoto, VR Badarla… - Laser & Photonics …, 2021 - Wiley Online Library
Fourier‐transform infrared spectroscopy (FTIR) is the golden standard of mid‐infrared (MIR)
molecular spectroscopic analysis through optically encoded vibrational signatures …

Wavelength-modulation spectroscopy in the mid-infrared for temperature and HCl measurements in aluminum-lithium composite-propellant flames

MD Ruesch, GC Mathews, RJ Tancin, SF Son… - Combustion and …, 2022 - Elsevier
This work presents the design, development, and application of a laser-absorption-
spectroscopy diagnostic capable of providing quantitative, time-resolved measurements of …

Method of adaptive wide dynamic range gas concentration detection based on optimized direct absorption spectroscopy

Q Wang, P Sun, Z Zhang, Y Cai, W Huang, T Pang… - Optics …, 2023 - opg.optica.org
For wide dynamic range gas concentration detection based on tunable diode laser
absorption spectroscopy (TDLAS), direct absorption spectroscopy (DAS) and wavelength …

Femtosecond ultraviolet laser absorption spectroscopy for simultaneous measurements of temperature and OH concentration

N Liu, TY Chen, H Zhong, Y Lin, Z Wang… - Applied Physics Letters, 2022 - pubs.aip.org
This Letter reports a femtosecond ultraviolet laser absorption spectroscopy (fs-UV-LAS) for
simultaneous in situ measurements of temperature and species. This fs-UV-LAS technique …

Sensitive and single-shot OH and temperature measurements by femtosecond cavity-enhanced absorption spectroscopy

N Liu, H Zhong, TY Chen, Y Lin, Z Wang, Y Ju - Optics Letters, 2022 - opg.optica.org
In many low-temperature plasmas (LTPs), the OH radical and temperature represent key
properties of plasma reactivity. However, OH and temperature measurements in weakly …

Cepstral analysis for baseline-insensitive absorption spectroscopy using light sources with pronounced intensity variations

CS Goldenstein, GC Mathews, RK Cole… - Applied Optics, 2020 - opg.optica.org
This paper presents a data-processing technique that improves the accuracy and precision
of absorption-spectroscopy measurements by isolating the molecular absorbance signal …