CRCProjektListPublicView

A1 A2 A3 A4 A5 A6 A7 A8 A9 B1 B2 B4 B5 B7 B8 B11 B12 B13 B14 B15 INF MGK PR

A2: Ro-vibrational distribution measurement in transient discharges by precision frequency comb spectroscopy

Principal Investigators: Ibrahim Sadiek, Jean Pierre van Helden

Team

Sadiek, Ibrahim
(Principal Investigator)

van Helden, Jean Pierre
(Principal Investigator)

Busch, Christian
(PhD)

Luggenhölscher, Dirk
(Senior Scientist)

Czarnetzki, Uwe
(Senior Professor)

Description

The energy distributions of molecules generated by the plasma provide insight into the formation of reactive species and reaction mechanisms relevant for efficient conversion. This project utilizes optical frequency comb spectroscopy, which uniquely provides broadband coverage, high spectral resolution and sensitivity, as well as absolute frequency accuracy, to determine state-resolved population distributions of molecular species relevant to plasma conversion and catalysis, including CO2 and CO. These experimentally determined distributions are used to validate and refine numerical plasma-chemistry simulations.

Publications

Nanosecond resolved vibrational kinetics of CO₂ in CO₂/N₂ mixtures measured in a pulsed discharge jet
C. A. Busch, N. D. Lepikhin, I. Orel, J. Kuhfeld, D. Luggenhölscher, U. Czarnetzki
J. Phys. D: Appl. Phys. 58, 065202 (2025)
Zero-dimensional simulations of DC ns-pulsed plasma jet in N₂ at near atmospheric pressure: validation of the vibrational kinetics
Y. He, J. Kuhfeld, N. D. Lepikhin, U. Czarnetzki, V. Guerra, R. P. Brinkmann, A. R. Gibson, E. H. Kemaneci
Plasma Sources Sci. Technol. 33, 115011 (2024)
Repository: https://rdpcidat.rub.de/node/1040
Self-consistent calculation of the optical emission spectrum of an argon capacitively coupled plasma based on the coupling of particle simulation with a collisional-radiative model
Z. Donkó, T. V. Tsankov, P. Hartmann, F. J. Arellano, U. Czarnetzki, S. Hamaguchi
J. Phys. D: Appl. Phys. 57, 375209 (2024)
PIC/MCC simulation for a ns-pulsed glow discharge in nitrogen at sub-atmospheric pressure and analysis of its quasi-steady state physics
J. Kuhfeld, N. D. Lepikhin, D. Luggenhölscher, U. Czarnetzki, Z. Donkó
Plasma Sources Sci. Technol. 32, 084001 (2023)
Repository: https://rdpcidat.rub.de/node/804
Breakdown and quasi-DC phase of a nanosecond discharge. Comparison of Optical Emission Spectroscopy measurements with numerical simulations
N. D. Lepikhin, J. Kuhfeld, Z. Donkó, D. Luggenhölscher, U. Czarnetzki
Plasma Sources Sci. Technol. 32, 084002 (2023)
Vibrational CARS measurements in a near-atmospheric pressure plasma jet in nitrogen: I. Measurement procedure and results
J. Kuhfeld, N. Lepikhin, D. Luggenhölscher, U. Czarnetzki
J. Phys. D: Appl. Phys. 54, 305204 (2021)
Repository: https://rdpcidat.rub.de/node/322
Vibrational CARS measurements in a near-atmospheric pressure plasma jet in Nitrogen: II. Analysis
J. Kuhfeld, D. Luggenhölscher, U. Czarnetzki
J. Phys. D: Appl. Phys. 54, 305205 (2021)
Repository: https://rdpcidat.rub.de/node/410
Time evolution of CO₂ ro-vibrational excitation in a nanosecond discharge measured with laser absorption spectroscopy
Y. Du, Ts. V. Tsankov, D. Luggenhölscher, U. Czarnetzki
J. Phys. D: Appl. Phys. 54 365201 (2021)
Repository: https://rdpcidat.rub.de/node/351
Nanosecond resolved ro-vibrational CO₂ excitation measurement
Y. Du, Ts. V. Tsankov, D. Luggenhölscher, U. Czarnetzki
J. Phys. D: Appl. Phys. 54, 34LT02 (2021)
Repository: https://rdpcidat.rub.de/node/418

Thesis

Jan Kuhfeld, PhD thesis - 12/2022
Ro-vibrational distribution measurement in transient discharges by coherent anti-Stokes Raman scattering
Jutta Püttmann, Bachelor thesis - 09/2019
Electric Field Measurements via EFISH in a CARS Setup
Christian Busch, PhD thesis - ongoing
CARS measurement of plasma species
Christian Busch, Master thesis - 10/2023
Ultra-fast Absorption Spectroscopy on CO₂ by a Quantum-Cascade Laser