Temporal, spatial and spectroscopic study of plasma emission on Cu target in bipolar HiPIMS
, , Published 2 August 2023 • © 2023 IOP Publishing Ltd
Full paper
Plasma Diagnostics and Modelling
Research group at the Department of Plasma Physics and Technology
2023
-
August 2nd
New paper
-
July 9th-14th
Conference: ICPIG 2023
Our group had a high attendance at the International Conference on Phenomena in Ionized Gases - ICPIG XXXV, July 9 - 14, 2023, in Egmond aan Zee, The Netherlands.
Waseem Khan had an oral presentation called Fluorescence (TALIF) measurement of ground state atomic nitrogen concentration in an argon RF plasma pencil measured using a picosecond laser, and a poster about Fluorescence (LIF) measurement of atomic antimony concentration in a planar dielectric barrier discharge.
The others presented their research in the poster session:
Tomáš Hoder: Theoretical and experimental analysis of 2p states kinetics in barrier discharge in argon,
Lukáš Kusýn: Spatiotemporally resolved electric field and temperatures in positive streamers,
David Prokop: Spatio-temporal spectroscopic investigation of a nanosecond-pulsed barrier discharge in argon,
Ján Tungli: Modelling of magnetron plasma using fluid dynamics. -
July 3rd-7th
Conference: EPS 2023
Martina Mrkvičková gave a talk about "EFISH and LIF diagnostics of dielectric barrier discharge used for atomization of tin hydride" in The 49th European Conference on Plasma Physics (EPS 2023), July 3rd to July 7th 2023, in Bordeaux, France.
-
May 21st-26th
Conference: ISPC 2023
Pavel Dvořák presented his poster about "Laser induced fluorescence and laser absorption measurements for the diagnostics of hydride atomizers" in the 25th International Symposium on Plasma Chemistry (ISPC25), 21st-26th May 2023, in Miyako Messe, Kyoto, Japan.
-
January 1st
New GAČR project: ultratrace element analysis
The Grant Agency of the Czech Republic project Versatile plasma sources and advanced approaches to signal evaluation as novel concepts in ultratrace element analysis by atomic spectrometry has started on 1 January 2023 and will finish on 31 December 2025. During this project, our group collaborates with Institute of Analytical Chemistry from Czech Academy of Science and Division of Analytical Chemistry and Chemical Metallurgy from Wroclaw University of Technology.
2022
-
December 14th
Brno Ph.D. Talent award
Kryštof Mrózek was awarded by the Brno Ph.D. Talent project, with the topic Feasibility study of applicability of a novel low-pressure plasma source for supporting air-breathing electric propulsion system.
-
November 21st-22nd
PSEW 2022
Martina Mrkvičková was invited to give a talk "Measurements of the electric field: four methods match" at the 9th Plasma Science & Entrepreneurship Workshop in York, United Kingdom.
-
October 10th
New group photo
-
September 15th
Invited presentation at GEC IOPS
Lucia Kuthanová was invited to present at the GEC International Online Plasma Seminar (IOPS) on her work on 'Memory propagation in barrier discharge at water interface'. The presentation was recorded and can be viewed online here.
-
September 5th-9th
SPIG 2022
Pavel Dvořák was invited to give a talk at the 31st Symposium and Summer School on Physics of Ionized Gases in Belgrade, Serbia.
Invited talk - Pavel Dvořák
- P Dvořák, R Žemlička, R. Přibyl, M. Tkáčik, J. Pálenik, P. Vašina, P. Skopal, Z. Navrátil, V. Buršíková: Higher harmonic frequencies of discharge voltage and current in a capacitively coupled plasma
-
July 19th-23rd
ESCAMPIG 2022 conference
Pedro Viegas gave a talk about "Modelling chemistry and transport in CO2 microwave discharges for CO2 conversion" at The XXV Europhysics Conference on the Atomic and Molecular Physics of Ionized Gases in Paris, France.
-
May 16th-17th
RIVA 2022 Conference
Pedro Viegas gave a talk about "Modelling chemistry and transport in CO2 microwave discharges for CO2 conversion" at RIVA 2022 - XII Iberian Vacuum and Applications Conference in Braga, Portugal.
-
March 29th
IOP Trusted Reviewr
Zdeněk Bonaventura has achieved "IOP Trusted Reviewer" status.
-
February 9th
New group member
Nima Bolouki has join our group.
-
January 1st
IGA project award
David Prokop was awarded by the IGA project, Advanced time-correlated single photon counting spectroscopy.
-
January 1st
New Technology Agency of the Czech Republic (TAČR) project
The Technology Agency of the Czech Republic Théta project Streamers and discharges sliding on dielectric surfaces in SF6 alternatives has started on 1 January 2022 and will finish on 31 December 2024. Four partners, from both academic and private sectors, will collaborate during this project. The team members participating on the project from our university are: doc. Mgr. Tomáš Hoder, Ph.D., Mgr. Zdeněk Bonaventura, Ph.D., Jaromír Hašana, Mgr. Lucia Kuthanová, Ph.D., doc. Mgr. Pavel Slavíček, Ph.D., Mgr. Ján Tungli.
2021
-
December 20th
First paper on air-breathing electric propulsion simulations!
Global plasma modeling of an magnetized high-frequency plasma source in low-pressure nitrogen and oxygen for air-breathing electric propulsion applications.
Plasma Sources Science and Technology, Volume 30, Number 12, Published 20 December 2021
Full paper
-
December
SVC Travel Support Award
Andrej Roštek has been chosen to receive an SVC (Society of Vacuum Coaters) Travel Support Award for SVC Technical Conference 2022 in California, USA.
-
November 19th
Gold medal of the Faculty of Science
The Dean of the Faculty of Science Tomáš Kašparovský honoured 36 personalities who had made a significant contribution to the development of the Faculty, and its departments and institutes, over the last few decades. Tomáš Hoder and Pavel Dvořák were among the laureates. Congratulations!
-
November 15th
New group photo
-
November
New equipment
We equipped our laboratory with a new toy: laser system from Ekspla, producing picosecond pulses with wavelengths tunable in range 193 – 2300 nm.
-
November
IOP Trusted Reviewers
Tomáš Hoder, Pedro Viegas and Zdeněk Bonaventura have all achieved "IOP Trusted Reviewer" status. -
November 8th-9th
VD workshop
Several of our colleagues gave talks or presented posters this November in Prague at the 8th Plasma Science & Entrepreneurship Workshop.
Invited talk - Pavel Dvořák
- DVOŘÁK, Pavel, Radek ŽEMLIČKA, Roman PŘIBYL, Maroš TKÁČIK, Juraj PÁLENIK, Petr VAŠINA, Petr SKOPAL, Zdeněk NAVRÁTIL a Vilma BURŠÍKOVÁ: Higher harmonic frequencies in a capacitively coupled plasma
Nonlinear nature of sheaths leads to nonlinear VA characteristics and generation of higher harmonic frequencies in capacitively coupled discharges. Higher harmonic frequencies are known to influence heating of electrons, especially at low pressure, and to be very sensitive to number of discharge parameters, which enables to use higher harmonics for monitoring of various deposition and etching processes. The presentation summarizes the topic of probe measurements of higher harmonic frequencies of plasma potential, nonlinear modeling of behaviour of higher harmonic frequencies in capacitive discharges and explanation of the mechanism which leads to the sensitive reaction of higher harmonics on the presence of a deposited or etched thin film.
Invited talk - Zdeněk Bonaventura
- Zdeněk Bonaventura: Electron avalanching in nanovoids at the initial stage of the nanosecond discharge in liquid water
Poster - Lukáš Kusýn
- Lukáš Kusýn, David Prokop, Zdeněk Navrátil, Tomáš Hoder: Sub-nanosecond spectra of pulsed argon plasma
Nanosecond-pulsed argon plasma generated in barrier discharge is widely used for many different applications and research purposes, e.g. surface treatment or plasma medicine. An important piece of information is the energy coupling between initial discharge and plasma by fast electrons. The time scales relevant for the investigation of the initiating streamer discharge tend to be of the order of hundreds of picoseconds. To obtain detailed insight into the discharge dynamics, the optical emission spectroscopy is enhanced by time-correlated single photon counting with a temporal resolution in a far sub-nanosecond range. Spatially-resolved measurements with a high temporal resolution for several selected radiative transitions of mainly 2p states give insight into the electron-argon kinetics.
- DVOŘÁK, Pavel, Radek ŽEMLIČKA, Roman PŘIBYL, Maroš TKÁČIK, Juraj PÁLENIK, Petr VAŠINA, Petr SKOPAL, Zdeněk NAVRÁTIL a Vilma BURŠÍKOVÁ: Higher harmonic frequencies in a capacitively coupled plasma
-
November 8th
Vice-Rector's Award
Petr Bílek and his supervisor Zdeněk Bonaventura won the Vice-Rector's Award of Masaryk University for Excellence in Doctoral Studies.
-
October 4th-8th
GEC 2021 conference
Even though the 74th Annual Gaseous Electronics Conference was held as a virtual only event, it was one of the major events for our group this year. We have given 2 invited talks, 3 regular talks and presented 2 posters.Invited talk - Tomáš Hoder: Streamer discharges, their initiation and electric field
Abstract: Streamer discharges are present in many fields of science. They are basic components of atmospheric electricity and frequently utilized sources of non-equilibrium plasmas, both in fundamental research and applications. Three cases from the physics of streamer discharges are discussed in this presentation. In a free space, the quasi-stationary phase of the streamer development is a well understood phenomenon. Nevertheless the very first stages of the initiation of the streamer in pulse driven discharges lack an experimental understanding, mostly due to the diagnostical challenges connected with the high streamer velocity and its stochastic occurrence. Here, we offer an approach for such detailed diagnostics. In a similar way, the complexity and high velocity of streamer discharges developing on dielectric surfaces is the reason for unanswered questions or lack of experimental data in the field. We offer experimentally based answers to two such questions: What amplitudes can the electric field strength reach during the streamer-surface interaction? What is the initiation mechanism of long plasma filaments in surface barrier discharges? We apply the time-correlated single-photon counting-based optical emission spectroscopy to surface and coplanar barrier discharges in atmospheric air to study such phenomena. We show experimentally that the electric field amplitude reaches values of 400 kV/cm as the positive streamer propagates directly on the surface in a coplanar discharge arrangement. Furthermore, we reveal an ultra-fast development of a remotely initiated streamer cascade in the case of surface barrier discharge operated at high overvoltage. We show that this previously unknown mechanism leads to the generation of an intense cathode spot, which is a crucial condition for plasma transition to a highly-ionized state.
Invited talk - Pedro Viegas: Effect of jet polarity on charging of a dielectric target: simulations and experiments
Abstract: The dynamical charging of a dielectric BSO target by an atmospheric pressure low-temperature plasma jet is addressed numerically and experimentally, using a two-dimensional fluid model and Mueller polarimetry measurements. The jet geometry is the same in experiments and simulations. The target is placed perpendicularly to the jet propagation and the jet is powered by rectangular pulses of applied voltage of different polarity and magnitude. The axial component of electric field inside the target is quantitatively compared between simulations and experiments, yielding excellent agreement for every studied condition, during and after the pulses. The electric field inside the target is closely related to the charge deposition on the target surface. It is shown that the spatial distribution of electric field inside the target during the pulse takes a different shape according to the jet polarity. Shortly after the pulse, charge deposition of opposite signal to the one of the applied voltage takes place. Finally, in the long time-scales in between pulses, the distributions of leftover surface charges on the target surface and leftover electric field inside the target are dependent on the polarity and magnitude of applied voltage. The discharge dynamics and the reasons behind these differences are investigated.
Regular talks - Lucia Kuthanová, Lukáš Kusýn, Ján Tungli
- Lucia Kuthanová: Memory propagation in barrier discharge at water interface.
- Lukáš Kusýn: Electric field and temperature patterns in lower-pressure streamer discharges.
- Ján Tungli: Modelling of electron multiplication mechanism in nanovoids initiating the breakdown in liquid water.
- Lucia Kuthanová: Memory propagation in barrier discharge at water interface.
-
September 24th
Plasma Froids seminary of CNRS
At Plasma Froids seminary of CNRS, Tomáš Hoder gave an invited talk "Ultra-fast plasma processes in gas and liquid".
-
September 22nd
Invited talk
Tomáš Hoder was invited to give a talk at the University Paul Sabatier, Toulouse, LAPLACE. His 40 minutes long presentation was titled "Filamentary barrier discharges: sub-nanosecond dynamics, electric field and memory effects".
-
September
Stay abroad
Tomáš Hoder spent September 2021 in the LAPLACE laboratory at the University of Paul Sabatier in Toulouse, France, as an invited professor. In cooperation with Dr.Nicolas Naudé, Dr.Antoine Belinger and Dr.Simon Dap they investigated homogeneous barrier discharges in Townsend and glow regimes at atmospheric pressure.
-
June 7th-11th
ECPD 2021 conference
Invited talk - Adam Obrusník
- A. Obrusnik, P. Bílek, M. Šimek, Z. Bonaventura and T. Hoder: Improving the accuracy of diagnostic methods through synergy with modeling, sensitivity analysis and uncertainty quantification
-
Publishing spree
Two papers in PSST first-authored by Miroslav Šnírer were published less than three months apart.
-
April 15th
IOP Outstanding reviewers
Tomáš Hoder and Pavel Dvořák have both been awarded as Outstanding reviewers of Plasma Sources Science and Technology journal in its 2020 Reviewer Awards.
-
January-June
Colaboration with Technical university of Eindhoven
Lukáš Kusýn started colaboration with the group of prof. Sander Nijdam in Technical university of Eindhoven (TUE) in Eindhoven, Neatherlands.
-
January
New group member
Pedro Viegas joined our group.
-
January 1st
New Czech Science Foundation (GAČR) project
The Czech Science Foundation project Advanced methods for ultra-fast diagnostics of transient argon-containing plasmas has started on 1 January 2021 and will finish on 31 December 2023. The team members participating on the project are: doc. Mgr. Tomáš Hoder, Ph.D., Mgr. Zdeněk Bonaventura, Ph.D., Jaromír Hašana, Mgr. Lucia Kuthanová, Ph.D., Mgr. Martina Mrkvičková, Ph.D., Mgr. Adam Obrusník, Ph.D., Ing. David Prokop and Petr Saul.
2020
-
December 11th
Invited talk
Tomáš Hoder was invited to give a talk at the Institute of Plasma and Atomic Physics, Universität Bochum, Germany.
- Tomáš Hoder: Streamer discharges on dielectric surface
-
November 2nd-3rd
VD workshop
Tomáš Hoder gave an invited talk at the 7th Plasma Science & Entrepreneurship Workshop in Bochum, Germany.
- Tomáš Hoder: New insights into barrier discharges
-
October 21st-23rd
NANOCON 2020 conference
Vít Kudrle presented a poster at the12th International Conference on Nanomaterials - Research & Application in Brno, Czech Republic.
- KUDRLE, Vít, Miroslav ŠNÍRER, Jozef TOMAN, Martin KUBEČKA, Jana JURMANOVÁ, Ondřej JAŠEK and František KRČMA: Simulation and diagnostics of plasmachemical processes during microwave plasma synthesis of graphene nanosheets from ethanol
-
October 5th-9th
GEC 2020 conference
Petr Bílek and Zdeněk Bonaventura have given their talks at the 73rd Annual Gaseous Electronics Conference.
Invited talk - Petr Bílek
- P. Bílek, A. Obrusnik, M. Šimek, Z. Bonaventura and T. Hoder: On valid interpretation of experimental data: Low temperature plasma diagnostics
Talk - Zdeněk Bonaventura
- Zdenek Bonaventura, Petr Bilek, Jan Tungli, Milan Simek: Fast pulsed electrical breakdown of water: electron multiplication in liquid ruptures
-
September 16th
Invited talk
Tomáš Hoder was invited to talk about "High-resolution diagnostics of transient non-thermal plasmas" at the Heyerovsky Institute, Prague, Czech Republic.
-
September
Milan Odehnal prize
Petr Bílek received a honorable mention in the Milan Odehnal prize. He was awarded for study of electric field in air plasmas. Congratulations!
-
January-March
Colaboration with University of Córdoba
Miroslav Šnírer started colaboration with the group of prof. Calzada in Córdoba, Spain (UCO) during his Erasmus stay, dedicated to plasma diagnostics of graphene synthesis in TIAGO.
2019
-
December 3rd
Publishing spree
Two papers were published on the exact same day.
-
October 16th-18th
NANOCON 2019 conference
Martin Kubečka presented a poster at the 11th International Conference on Nanomaterials - Research & Application in Brno, Czech Republic.
- KUBEČKA, Martin, Jozef TOMAN, Miroslav ŠNÍRER, Ondřej JAŠEK, Vít KUDRLE and Jana JURMANOVÁ: The role of microwave plasma temperature during graphene nanosheets deposition on dielectric substrate: Modelling and experiment
-
September 22nd-26th
LAPD 2019
Pavel Dvořák was invited to give a general talk about "Two-photon absorption laser-induced fluorescence measurement of atomic hydrogen in discharges and flames induced at atmospheric pressure" at Laser Aided Plasma Diagnostics in Whitefish, Montana, USA.
-
July 14th-19th
XXXIV ICPIG & ICRP-10 conferences
Zdeněk Bonaventura was invited to give a talk and Vít Kudrle presented a poster at The Joint Conference of XXXIV International Conference on Phenomena in Ionized Gases (XXXIV ICPIG) and the 10th International Conference on Reactive Plasmas (ICRP-10).
- Zdeněk Bonaventura: Streamer-induced kinetics of the ground and excited states in N2—O2 including highly excited and auto-ionizing states of atomic species
- KUDRLE, Vít, Miroslav ŠNÍRER, Jozef TOMAN, Ondřej JAŠEK and Jana JURMANOVÁ: Influence of admixtures on atmospheric pressure microwave plasma torch used for graphene nanosheets synthesis
-
July 8th-12th
EPS 2019 conference
Miroslav Šnírer and Jan Faltýnek participated at the 46th European Physical Society Conference on Plasma Physics in Milan, Italy.
Talk - Miroslav Šnírer
- Snirer, M., Kudrle, V., Toman, J., Jasek, O., & Jurmanova, J.: Influence of molecular admixtures on filamentation in microwave plasma torch
Poster - Jan Faltýnek
- FALTÝNEK Jan, KUDRLE Vít, ŠNÍRER Miroslav, TOMAN Jozef and JAŠEK Ondřej: Determination of electron density in microwave plasma torch by microwave interferometry
-
June 9th-14th
ISPC24 symposium
Adam Obrusník gave a talk at the 24th International Symposium on Plasma Chemistry in Naples, Italy.
- OBRUSNÍK, Adam, Pavel DVOŘÁK and Jiří DĚDINA: Identifying the scaling parameters of neutral kinetics in DBD plasma atomizers using screening and variance-based sensitivity analysis
-
May 13th-16th
Frontiers 2019 conference
Lukáš Kusýn presented his poster at the 13th Frontiers in Low-Temperature Plasma Diagnostics & 1st Frontiers in Low-Temperature Plasma Simulations in Bad Honnef, Germany.
- L. Kusyn, P. Hoffer, Z. Bonaventura, T. Hoder: Automated determination of pressure profile generated by discharges in contact with liquid phase by interferometric technique
-
May 6th-9th
ECPD 2019 conference
Pavel Dvořák was invited to give a talk at the European Conference on Plasma Diagnostics in Lisbon, Portugal.
Invited talk - Pavel Dvořák
- DVOŘÁK, Pavel, Adam OBRUSNÍK, Marek TALÁBA, Martina MRKVIČKOVÁ, Jan KRATZER, Vojtěch PROCHÁZKA a Jiří DĚDINA: Fluorescence measurements of atomic species in discharges and flames (H, N, O, Pb, Bi, Sn and Te)
-
February 14th
Edge article in high impact journal
Radical theory of hydride atomization confirmed after four decades - determination of H radicals in the quartz hydride atomizer by two-photon absorption laser-induced fluorescence
Chemical Science (impact factor 9.825), 10, 3643–3648, published 14 February 2019
Full paper
2018
-
October 16th
Invited talk
Tomáš Hoder was invited to give a talk at the Bochum University, Germany.
- Tomáš Hoder: High-Resolution Spectroscopic and Electrical Diagnostics of Barrier Discharges
-
October
New group photo
-
September 23rd-26th
IPS 2018 workshop
Pavel Dvořák and Martina Mrkvičková gave talks at the 8th International Workshop on Plasma Spectroscopy at Worcester College, Oxford, UK.
Pavel Dvořák
- DVOŘÁK, Pavel, Jan SKALNÍK, Martina MRKVIČKOVÁ a Marek TALÁBA: Measurement of atomic hydrogen by fluorescence induced by two-photon absorption
Atomic hydrogen was measured by means of TALIF in various discharges and flames. Several aspects of the (TA)LIF method, namely partial saturation of fluorescence process, were analyzed.
Martina Mrkvičková
- MRKVIČKOVÁ, Martina, Pavel DVOŘÁK, Jan VORÁČ, Jan KRATZER, Milan SVOBODA a Jiří DĚDINA: Laser-induced fluorescence measurements of atomic lead in hydride atomizers for atomic absorption and atomic fluorescence spectrometry
We developed a theoretical model of the laser-induced fluorescence process, which predicted the shape of fluorescence non-linear dependence on energy of laser pulses. Thanks to that model, we are able to evaluate the LIF measurements also in highly saturated regime. We used this aproach for measurement of concentration of atomic lead produced in hydride atomizers for atomic absorption spectrometry, in order to understand the atomization process. We found out that the lead atoms occur mainly in the centre of the flame atomizers and the key role in atomization process is played by hydrogen atoms.
-
September 16th-22nd
EFRE 2018 conference
Zdeněk Bonaventura was invited to give a talk at the 6th International Congress on Energy Fluxes and Radiation Effects in Tomsk, Russia.
- Zdenek Bonaventura, Olivier Chanrion, Anne, Bourdon, Torsten Neubert: Runaway electrons from streamer breakdown in short overvolted gaps
- Zdenek Bonaventura, Olivier Chanrion, Anne, Bourdon, Torsten Neubert: Runaway electrons from streamer breakdown in short overvolted gaps
-
September 3rd-7th
MD10 conference
Vít Kudrle was invited to give a talk at the Xth INTERNATIONAL WORKSHOP on MICROWAVE DISCHARGES: Fundamentals and Applications in Zvenigorod, Russia.
- KUDRLE, Vít, Miroslav ŠNÍRER, Jozef TOMAN, Ondřej JAŠEK, Jana JURMANOVÁ, Lucia POTOČŇÁKOVÁ and Jaroslav HNILICA: Self-organization in Microwave Filamentary Discharges
- KUDRLE, Vít, Miroslav ŠNÍRER, Jozef TOMAN, Ondřej JAŠEK, Jana JURMANOVÁ, Lucia POTOČŇÁKOVÁ and Jaroslav HNILICA: Self-organization in Microwave Filamentary Discharges
-
August 28th - September 1st
SPIG 2018 symposium
Tomáš Hoder was invited to give a talk at the 29th Summer School and International Symposium on the Physics of Ionized Gases in Belgrade, Serbia.
- Tomáš Hoder: High-Resolution High-Sensitivity Spectroscopic and Electrical Diagnostics of Barrier Discharges
-
August 28th-30th
Two-parts paper
-
July 17th-21st
ESCAMPIG 2018 conference
Miroslav Šnírer presented his poster at Europhysics Conference on the Atomic and Molecular Physics of Ionized Gases in Glasgow, UK.
- Snirer, M., Toman, J., Jašek, O., Kudrle, V., & Jurmanová, J.: Optical emission spectroscopy of gas mixing process during graphene nanosheets synthesis by dual channel microwave plasma torch at atmospheric pressure
- Snirer, M., Toman, J., Jašek, O., Kudrle, V., & Jurmanová, J.: Optical emission spectroscopy of gas mixing process during graphene nanosheets synthesis by dual channel microwave plasma torch at atmospheric pressure
-
July 2nd-6th
EPS 2018
Miroslav Šnírer presented a poster at the 45th European Physical Society Conference on Plasma Physics in Prague, Czech Republic.
- Snirer, M., Toman, J., Kudrle, V., Jašek, O., Faltýnek, J., & Jurmanová, J.: Plasma diagnostics during microwave plasma synthesis of graphene nanosheets
- Snirer, M., Toman, J., Kudrle, V., Jašek, O., Faltýnek, J., & Jurmanová, J.: Plasma diagnostics during microwave plasma synthesis of graphene nanosheets
-
June
Best image in plasma science
Miroslav Šnírer won "Best image in plasma science" at 45th European Physical Society Conference on Plasma Physics. Congratulations!
-
March 4th-9th
DPG conference
Tomáš Hoder was invited to give a talk at 82. Jahrestagung der DPG und DPG-Frühjahrstagung in Erlangen, Germany.
- Tomáš Hoder: High-Resolution Spectroscopic and Electrical Diagnostics of Barrier Discharges
-
PhD. talent award
Lukáš Kusýn was awarded PhD. talent scholarship for the years 2018-2021.
2017
-
August 4th
HAKONE XV Editorial
Tomáš Hoder, the Vice-chair of the Local Organising Committee, and Mirko Černák, the Chair of the International Scientific Committee, have written the editorial for a special issue of Eur. Phys. J. Appl. Phys., dedicated to the HAKONE 2016 conference in Brno, organized by our department.
The 15th International Symposium on High Pressure Low Temperature Plasma Chemistry (HAKONE XV)
EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS, Volume 79, Number 3, Published 4 August 2017
Full paper
-
July 30th - August 4th
ISPC 23 conference
Jan Faltýnek gave a talk at the 23rd International Symposium on Plasma Chemistry in Montreal, Canada.
- FALTÝNEK Jan, KUDRLE Vít, TESAŘ Jakub, VOLFOVÁ Martina and TÁLSKÝ Antonín: Numerical enhancement of the microwave cavity method for plasma density measurement
- FALTÝNEK Jan, KUDRLE Vít, TESAŘ Jakub, VOLFOVÁ Martina and TÁLSKÝ Antonín: Numerical enhancement of the microwave cavity method for plasma density measurement
-
July 5th-9th
IWM 2017 workshop
Tomáš Hoder was invited to give a talk at the 9th International Workshop on Microplasmas in Garmisch-Partenkirchen, Germany.
- Tomáš Hoder: High-Resolution Spectroscopy of Microplasmas and Novel Software massiveOES for Spectra Analysis
-
June 30th
New functionality in "massiveOES" software and a new paper
In order to precisely understand the non-equilibrium of rotational-vibrational state distribution from the investigated spectra without limiting presumptions, a state-by-state temperature-independent fitting procedure is the ideal approach. In this paper, we present an addition of novel software tool developed for this purpose into our previously published software massiveOES, freely available for the scientific community. The introduced tool offers a convenient way to construct Boltzmann plots even from partially overlapping spectra, in a user-friendly environment. We apply the novel software to the challenging case of OH spectra in surface streamer discharges generated from the triple-line of the argon/water/dielectrics interface.
State-by-state emission spectra fitting for non-equilibrium plasmas: OH spectra of surface barrier discharge at argon/water interface
Journal of Physics D: Applied Physics, Volume 50, Number 29, Published 30 June 2017
Full paper
-
June 27th
SPM5 workshop
Tomáš Hoder was invited to give a talk at the 5th Workshop on Solution Plasma and Molecular Technologies in Greifswald, Germany.
- Tomáš Hoder: Surface Barrier Discharge at Solution/Gas Interface:Applications in Surface Treatment And Fundamental Physics
-
March 20th
New GRAVARC paper
The fourth (and with its 15 pages by far the longest) paper about our hypergravity experiments with gliding arc was published recently. The hypergravity conditions up to 18g were achieved at Large Diameter Centrifuge in European Space Agency research centre in Netherlands, where we got access thanks to the Spin Your Thesis! student programme.
Experimental study of gliding arc plasma channel motion: buoyancy and gas flow phenomena under normal and hypergravity conditions
Plasma Sources Science and Technology, Volume 26, Number 4, Published 20 March 2017
Full paper
-
January 31st
New software "massiveOES" and paper
In this study, the need to batch process the massive datasets containing overlapping molecular spectra in order to obtain the spatio-temporal maps of rotational and vibrational temperatures has arisen. However, none of the publicly accessible software packages provides such functionality. We therefore developed a software, massiveOES, specifically to overcome these shortcomings. This software is now freely available to the scientific community. This paper, besides the plasma diagnostics results, also briefly discusses the data processing methods used by our software.
Batch processing of overlapping molecular spectra as a tool for spatio-temporal diagnostics of power modulated microwave plasma jet
Plasma Sources Science and Technology, Volume 26, Number 2, Published 31 January 2017
Full paper