35 citations · 53 across the 9 of their papers we have counts for
10 papers
Proof of operation of a micro-hollow cathode discharge driven by a true ns-pulsed high voltage: emission properties and atomic nitrogen production
Nikolaos Chazapis, Dimitrios Stefas, Alexandra Brisset +5
The implementation of Micro-Hollow Cathode Discharges (MHCDs) for the efficient and controlled dissociation of molecular nitrogen into reactive N-atoms remains a central challenge…
Quantitative schlieren imaging coupled with inverse Abel transformation for flow field studies in a cylindrical surface DBD
K Giotis, A G Makrypodi, P Svarnas +2
The present work is devoted to the proper application of the schlieren imaging technique, combined with inverse Abel transformation, to record the flow field induced by atmospheric…
A Comprehensive multi-species comparison of rotational temperature probes in a DC Ar/N micro-hollow cathode discharge
Dimitrios Stefas, Belkacem Menacer, Alice Remigy +4
Accurate gas temperature () determination in microplasmas is critical for optimizing their applications, yet isolated diagnostic approaches may yield misleading result…
Ultrafast ps--TALIF and streak camera diagnostics of atomic hydrogen in a helium microplasma jet
Dimitrios Stefas, Yanis Agha, Laurent Invernizzi +6
Picosecond two-photon absorption laser induced fluorescence (ps--TALIF) is combined with a streak camera (1 ps highest temporal resolution) to probe the effective lifetime ($…
Hexagonal boron nitride thin film synthesis with a ns-pulsed MHCD: in-situ plasma diagnostics and post-growth film characterization
Belkacem Menacer, Dimitrios Stefas, Nikolaos Chazapis +3
Hexagonal boron nitride (h-BN) is deposited on Si <100> wafer (20 cm2) via Plasma Enhanced Chemical Vapor Deposition (PECVD) using a ns-pulsed N2/Ar Micro Hollow Cathode D…
Discharge dynamics in a cylindrical SDBD prototype reactor under ns-pulsed and sinusoidal AC operation
Konstantinos Giotis, Dimitrios Stefas, Yanis Agha +5
We developed a prototype reactor generating surface dielectric barrier discharges (SDBDs) in ambient air, designed for consistent operation while preventing constructive material d…
Machine learning assisted optical diagnostics on a cylindrical atmospheric pressure surface dielectric barrier discharge
Dimitrios Stefas, Konstantinos Giotis, Laurent Invernizzi +6
The present study explores combining machine learning (ML) algorithms with standard optical diagnostics (such as time-integrated emission spectroscopy and imaging) to accurately pr…
Picosecond two-photon absorption laser induced fluorescence (ps-TALIF) in krypton: the role of photoionization on the density depletion of the fluorescing state Kr 5p'[3/2]
K. Gazeli, X Aubert, S Prasanna +3
The present study focuses on the application of a picosecond (ps) TALIF technique in krypton (Kr) at variable pressure (0.1-10 mbar). The laser intensity (I, units W.cm) is…
A simplified procedure to capture N(4S) kinetics during the transients of a strongly emissive pulsed ECR plasma using TALIF
E Bisceglia, Swaminathan Prasanna, K. Gazeli +4
A simplified and straightforward methodology that may be used to measure N(4 S) density by TALIF technique in strongly emissive plasmas is presented. The method makes use of the ab…
Acinetobacter baumannii Deactivation by Means of DBD-Based Helium Plasma Jet
P. Svarnas, A. Spiliopoulou, P. G. Koutsoukos +2
Acinetobacter baumannii is a typically short, almost round, rod-shaped (coccobacillus) Gram-negative bacterium. It can be an opportunistic pathogen in humans, affecting people with…