Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Gas detection sensitivity of hybrid fs/ps and fs/ns CARS

Journal Article · · Optics Letters
DOI:https://doi.org/10.1364/ol.455427· OSTI ID:1855811
Coherent anti-Stokes Raman scattering (CARS) is commonly used for thermometry and concentration measurement of major species. The quadratic scaling of CARS signal with number density has limited the use of CARS for detection of minor species, where more sensitive approaches may be more attractive. However, significant advancements in ultrafast CARS approaches have been made over the past two decades, including the development of hybrid CARS demonstrated to yield greatly increased excitation efficiencies. Yet, detailed detection limits of hybrid CARS have not been well established. In this Letter, detection limits for N2, H2, CO, and C2H4 by point-wise hybrid femtosecond (fs)/picosecond (ps) CARS are determined to be of the order of 1015 molecules/cm3. Here, the possible benefit of fs/nanosecond (ns) hybrid CARS is also discussed.
Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0003525
OSTI ID:
1855811
Alternate ID(s):
OSTI ID: 1854415
Report Number(s):
SAND2022-2756J; 704021
Journal Information:
Optics Letters, Journal Name: Optics Letters Journal Issue: 6 Vol. 47; ISSN 0146-9592
Publisher:
Optical Society of America (OSA)Copyright Statement
Country of Publication:
United States
Language:
English

References (24)

Nitric oxide concentration measurements in atmospheric pressure flames using electronic-resonance-enhanced coherent anti-Stokes Raman scattering journal May 2007
Resonance cars of OH in high-pressure flames journal May 1990
Resonance enhanced CARS applied to the CH radical journal August 1995
Recent advances in coherent anti-Stokes Raman scattering spectroscopy: Fundamental developments and applications in reacting flows journal April 2010
Laser diagnostics and minor species detection in combustion using resonant four-wave mixing journal September 2011
Plasma assisted combustion: Dynamics and chemistry journal June 2015
Simultaneous Imaging of Gas Phase over and Surface Reflectance of a Pd(100) Single Crystal during CO Oxidation journal October 2017
Electronic-resonance-enhanced coherent anti-Stokes Raman spectroscopy of nitric oxide journal September 2003
On the possibility of measuring gas concentrations by stimulated anti‐Stokes scattering journal September 1973
Development of simultaneous frequency- and time-resolved coherent anti-Stokes Raman scattering for ultrafast detection of molecular Raman spectra journal July 2006
Femtosecond coherent anti-Stokes Raman scattering measurement of gas temperatures from frequency-spread dephasing of the Raman coherence journal December 2006
Measurement of vibrational populations in low‐pressure hydrogen plasma by coherent anti‐Stokes Raman scattering journal April 1981
Communication: Simplified two-beam rotational CARS signal generation demonstrated in 1D journal February 2013
Two-color vibrational, femtosecond, fully resonant electronically enhanced CARS (FREE-CARS) of gas-phase nitric oxide journal September 2016
Rotational coherence beating in molecular oxygen: Coupling between electronic spin and nuclear angular momenta journal December 2018
Recent advances in ultrafast-laser-based spectroscopy and imaging for reacting plasmas and flames journal September 2017
Spectroscopy techniques and the measurement of molecular radical densities in atmospheric pressure plasmas journal July 2019
Electronic resonance enhancement of coherent anti-Stokes Raman scattering journal October 1978
Concentration and pressure scaling of CH 2 O electronic-resonance-enhanced coherent anti-Stokes Raman scattering signals journal January 2021
1-kHz two-dimensional coherent anti-Stokes Raman scattering (2D-CARS) for gas-phase thermometry journal January 2016
Measurement of nitric oxide concentrations in flames by using electronic-resonance-enhanced coherent anti-Stokes Raman scattering journal January 2006
Hybrid femtosecond/picosecond coherent anti-Stokes Raman scattering for high-speed gas-phase thermometry journal January 2010
Pressure measurements using hybrid femtosecond/picosecond rotational coherent anti-Stokes Raman scattering journal January 2015
Single-shot thermometry and OH detection via femtosecond fully resonant electronically enhanced CARS (FREE-CARS) journal January 2016

Similar Records

Hybrid fs/ps rotational CARS temperature and oxygen measurements in the product gases of canonical flat flames
Journal Article · Tue Dec 30 19:00:00 EST 2014 · Combustion and Flame · OSTI ID:1183118

Hybrid fs/ps CARS for Sooting and Particle-laden Flames
Conference · Mon Nov 30 23:00:00 EST 2015 · OSTI ID:1340209