Recent advances in ultrafast-laser-based spectroscopy and imaging for reacting plasmas and flames

AK Patnaik, I Adamovich, JR Gord… - Plasma Sources Science …, 2017 - iopscience.iop.org
Reacting flows and plasmas are prevalent in a wide array of systems involving defense,
commercial, space, energy, medical, and consumer products. Understanding the complex …

Time-and frequency-dependent model of time-resolved coherent anti-Stokes Raman scattering (CARS) with a picosecond-duration probe pulse

HU Stauffer, JD Miller, MN Slipchenko… - The Journal of …, 2014 - pubs.aip.org
The hybrid femtosecond/picosecond coherent anti-Stokes Raman scattering (fs/ps CARS)
technique presents a promising alternative to either fs time-resolved or ps frequency …

Hybrid fs/ps rotational CARS temperature and oxygen measurements in the product gases of canonical flat flames

SP Kearney - Combustion and Flame, 2015 - Elsevier
A hybrid fs/ps pure-rotational coherent anti-Stokes Raman scattering (CARS) scheme is
systematically evaluated over a wide range of flame conditions in the product gases of two …

Single-shot gas-phase thermometry using pure-rotational hybrid femtosecond/picosecond coherent anti-Stokes Raman scattering

JD Miller, S Roy, MN Slipchenko, JR Gord… - Optics …, 2011 - opg.optica.org
High-repetition-rate, single-laser-shot measurements are important for the investigation of
unsteady flows where temperature and species concentrations can vary significantly. Here …

1-kHz two-dimensional coherent anti-Stokes Raman scattering (2D-CARS) for gas-phase thermometry

JD Miller, MN Slipchenko, JG Mance, S Roy… - Optics express, 2016 - opg.optica.org
Two-dimensional gas-phase coherent anti-Stokes Raman scattering (2D-CARS)
thermometry is demonstrated at 1 kHz in a heated jet. A hybrid femtosecond/picosecond …

Dielectric-barrier-discharge plasma-assisted hydrogen diffusion flame. Part 1: Temperature, oxygen, and fuel measurements by one-dimensional fs/ps rotational …

JE Retter, GS Elliott, SP Kearney - Combustion and Flame, 2018 - Elsevier
One-dimensional hybrid fs/ps CARS imaging provides single-laser-shot measurements of
temperature, oxygen, and hydrogen in a plasma-assisted hydrogen diffusion flame. The …

100-kHz-rate gas-phase thermometry using 100-ps pulses from a burst-mode laser

S Roy, PS Hsu, N Jiang, MN Slipchenko, JR Gord - Optics letters, 2015 - opg.optica.org
Temperature measurements based on gas-phase coherent anti-Stokes Raman scattering
(CARS) spectroscopy are demonstrated in reacting flows at a rate of 100 kHz employing a …

Comparison of chirped-probe-pulse and hybrid femtosecond/picosecond coherent anti-Stokes Raman scattering for combustion thermometry

DR Richardson, HU Stauffer, S Roy, JR Gord - Applied optics, 2017 - opg.optica.org
A comparison is made between two ultrashort-pulse coherent anti-Stokes Raman scattering
(CARS) thermometry techniques—hybrid femtosecond/picosecond (fs/ps) CARS and …

Flexible chirp-free probe pulse amplification for kHz fs/ps rotational CARS

KA Rahman, EL Braun, MN Slipchenko, S Roy… - Optics Letters, 2020 - opg.optica.org
The sensitivity of high-repetition-rate hybrid femtosecond/picosecond (fs/ps) rotational
coherent anti-Stokes Raman scattering (RCARS) is strongly influenced by the energy …

Diagnostic imaging in flames with instantaneous planar coherent Raman spectroscopy

A Bohlin, CJ Kliewer - The Journal of Physical Chemistry Letters, 2014 - ACS Publications
Spatial mapping of temperature and molecular species concentrations is vitally important in
studies of gaseous chemically reacting flows. Temperature marks the evolution of heat …