Electric field determination in transient plasmas: in situ & non-invasive methods

BM Goldberg, T Hoder… - Plasma Sources Science …, 2022 - iopscience.iop.org
One of the primary basic plasma parameters within transient nonequilibrium plasmas is the
reduced electric field strength, roughly understood as the ratio of the electrical energy given …

Localized time accurate sampling of nonequilibrium and unsteady hypersonic flows: methods and horizons

R Miles, A Dogariu, L Dogariu - Experiments in Fluids, 2021 - Springer
Modern “non-intrusive” optical methods are providing revolutionary capabilities for
diagnostics of hypersonic flow fields. They generate accurate information on the …

Plasma-assisted deflagration to detonation transition in a microchannel with fast-frame imaging and hybrid fs/ps coherent anti-Stokes Raman scattering …

M Vorenkamp, SA Steinmetz, TY Chen, X Mao… - Proceedings of the …, 2023 - Elsevier
This study examines kinetic enhancement by nanosecond dielectric barrier discharge (ns-
DBD) plasma on fuel-lean, Φ= 0.7, dimethyl ether (DME), oxygen (O 2), and argon (Ar) …

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 …

Coherent Raman spectroscopy on hydrogen with in-situ generation, in-situ use, and in-situ referencing of the ultrabroadband excitation

F Mazza, A Stutvoet, L Castellanos, D Kliukin… - Optics …, 2022 - opg.optica.org
Time-resolved spectroscopy can provide valuable insights in hydrogen chemistry, with
applications ranging from fundamental physics to the use of hydrogen as a commercial fuel …

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 …

Simultaneous single-shot rotation–vibration non-equilibrium thermometry using pure rotational fs/ps CARS coherence beating

TY Chen, N Liu, CJ Kliewer, A Dogariu, E Kolemen… - Optics Letters, 2022 - opg.optica.org
We report the development of a simple and sensitive two-beam hybrid femtosecond/
picosecond pure rotational coherent anti-Stokes Raman scattering (fs/ps CARS) method to …

[HTML][HTML] Advances in imaging of chemically reacting flows

JH Frank - The Journal of Chemical Physics, 2021 - pubs.aip.org
Many important chemically reacting systems are inherently multi-dimensional with spatial
and temporal variations in the thermochemical state, which can be strongly coupled to …

Filamentation-based, two-beam, 1-kHz, and single-shot N2 vibrational CARS thermometry in high-temperature flames

Z Tian, H Zhao, Y Gao, H Wei, Y Tan, Y Li - Applied Physics Letters, 2022 - pubs.aip.org
We achieve two-beam, 1-kHz, and single-shot N 2 vibrational coherent anti-Stokes Raman
scattering (CARS) thermometry using hybrid femtosecond/picosecond CARS in high …

Resolved rotation–vibration non-equilibrium with rotational VIPA-CARS

SA Steinmetz, TY Chen, BM Goldberg, CM Limbach… - Optics Letters, 2022 - opg.optica.org
Simultaneous rotational and vibrational temperatures are measured in an N_2 plasma with
rotational coherent anti-Stokes Raman scattering (CARS) resolved with a virtually imaged …