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Hire Dr. Johannes G.

Austria

USD 100 /hr

Plasma physicist, Editor-in-chief of the Journal of Technological and Space Plasmas

Profile Summary

I have more than 15 years of experience in low and atmospheric-pressure plasmas, optical emission spectroscopy, electrical probes, and plasma diagnostics in general. Furthermore, I have worked in PECVD, CVD, and other plasma deposition methods. I am familiar with laser systems, Raman spectroscopy, plasma instabilities, and plasma surface engineering. Over time I have led and implemented several research projects in industry and academia.

Subject Matter Expertise

• ★ Lasers & Photonics
• ★ Plasma Technology
• ★ Technical & Scientific Writing
• ☆ Surface Science
• ☆ Raman Spectroscopy
• ☆ Thermodynamics
• ☆ Plasma Physics
• ☆ Optics
• ☆ Manuscript & Journal Article Writing

Services

• Writing
• Research
• Consulting
• Data & AI
• Product Development

Writing Technical Writing, Copywriting, General Proofreading & Editing, Translation

Research Market Research, User Research, Technology Scouting, Fact Checking, Gray Literature Search, Scientific and Technical Research, Systematic Literature Review

Consulting Operations Consulting, Scientific and Technical Consulting, Manufacturing Consulting

Data & AI Statistical Analysis

Product Development Formulation, Manufacturing, Prototyping, Device Fabrication

Work Experience

CEO, Founder

Gruenwald Laboratories GmbH

2018 - Present

Senior scientist, lecturer

ELI Beamlines Prague

July 2016 - June 2017

Senior scientist, lecturer

Leibniz Institute for Low Temperature Plasma Science and Technology

March 2015 - May 2016

Postdoctroral Researcher

University of Graz

January 2012 - April 2014

Education

PhD

University of Innsbruck

August 2009 - December 2012

Master

University of Graz

October 2003 - July 2008

Certifications

• Summer School of Self-Organization in Turbulent Plasmas and Fluids

  Max-Planck-Institut komplexer Systeme

  May 2010 - Present

• Summer School Certificate

  Carolus Magnus Summer School of Plasma Physics

  August 2009 - Present

• International Summer School on Advanced Studies of Polymer Electrolyte Fluid Cells

  Technical University of Graz

  August 2008 - Present

Publications

JOURNAL ARTICLE

(2022). Measurement of inverted n-hexane fireball properties with a Multipole Resonance Probe. Journal of Technological and Space Plasmas.

Reiner L Stenzel and Johannes Grünwald and Codrina Ionita and Roman Schrittwieser and Manuel Urrutia(2021). Sheaths and Double Layers with Instabilities . The Journal of Technological and Space Plasmas. 2. (1). p. 70--92. Gruenwald Laboratories

Gruenwald, J., Balzer, M., Eichenhofer, G., Fenker, M.(2021). Application and limitations of inverted fireballs in a magnetron sputter device . Surface and Coatings Technology. 422.

Gregor Filipi{\v{c}} and Johannes Gruenwald(2020). Temperature influence on the diethylamine sensing abilities of CuO nanoparticles deposited by atmospheric pressure plasma . The Journal of Technological and Space Plasmas. 1. (1). p. 00021--00025. Gruenwald Laboratories

(2020). Letter: Influence of inhomogeneous electrode biasing on the plasma parameters of inverted H2 fireballs. Journal of Technological and Space Plasmas.

Gruenwald, J.(2020). Comment on "sheath oscillations during directional motion of fire tube formation in expanding RF plasma" [Phys. Plasmas 26, 113502 (2019)] . Physics of Plasmas. 27. (1).

(2020). Utilisation of plasma centrifuges for life support systems on Mars . Journal of Technological and Space Plasmas.

Tauber, C., Schmoll, D., Gruenwald, J., Brilke, S., Wlasits, P.J., Winkler, P.M., Wimmer, D.(2020). Characterization of a non-thermal plasma source for use as a mass specrometric calibration tool and non-radioactive aerosol charger . Atmospheric Measurement Techniques. 13. (11). p. 5993-6006.

Gruenwald, J., Teodorescu, C.(2020). Novel target design for a laser-driven aneutronic fusion reactor . Fusion Engineering and Design. 151.

Gruenwald, J., Teodorescu, C.(2019). On the dispersion relation for the Buneman instability in spherically confined plasmas . Plasma Physics and Controlled Fusion. 61. (3).

Johannes Gruenwald(2018). Utilisation of plasma centrifuges for life support systems on Mars . The Journal of Technological and Space Plasmas. 1. (1). p. 5--11. Gruenwald Laboratories

Gruenwald, J., Kovačič, J., Fonda, B., Gyergyek, T.(2018). A model for the basic plasma parameter profiles and the force exerted by fireballs with non-isothermal electrons . Physics of Plasmas. 25. (11).

Gruenwald, J., Reynvaan, J., Geistlinger, P.(2018). Basic plasma parameters and physical properties of inverted He fireballs . Plasma Sources Science and Technology. 27. (1).

Gruenwald, J.(2018). Comment on 'The case for in situ resource utilization for oxygen production on Mars by non-equilibrium plasmas' . Plasma Sources Science and Technology. 27. (2).

Levko, D., Gruenwald, J.(2018). Influence of the emission current on a beam-generated plasma . Physics of Plasmas. 25. (12).

Gruenwald, J., Kocoń, D., Khikhlukha, D.(2018). Foundations of a laser-accelerated plasma diagnostics and beam stabilization with miniaturized Rogowski coils . Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 883. p. 9-13.

Gruenwald, J.(2017). Comment on "plasma fireball: A unique tool to fabricate patterned nanodots" [Rev. Sci. Instrum. 88, 063507 (2017)] . Review of Scientific Instruments. 88. (8).

Gruenwald, J.(2017). Proposal for a novel type of small scale aneutronic fusion reactor . Plasma Physics and Controlled Fusion. 59. (2).

Levko, D., Gruenwald, J.(2017). On the energy deposition into the plasma for an inverted fireball geometry . Physics of Plasmas. 24. (10).

Gruenwald, J., Fricke, K., Fröhlich, M., Kolb, J.F., Polak, M.(2016). Deposition of Copper Oxide Coatings with an Atmospheric Pressure Plasma Source: II – Characterization of the Films . Plasma Processes and Polymers. 13. (8). p. 766-774.

Knoll, P., Reynvaan, J., Mayer, M., Surnev, S., Geistlinger, P., Krenn, K., Ettinger, K., Prietl, C., Hohenau, A., Gruenwald, J., et al.(2016). PECVD of carbon by inverted fireballs: From sputtering, bias enhanced nucleation to deposition . Diamond and Related Materials. 65. p. 96-104.

Gruenwald, J., Fricke, K., Fröhlich, M., Kolb, J.F., Polak, M.(2016). Cover Picture: Plasma Process. Polym. 8∕2016 . Plasma Processes and Polymers. 13. (8). p. 761.

Gruenwald, J.(2016). A hybrid plasma technology life support system for the generation of oxygen on Mars: Considerations on materials and geometry . Acta Astronautica. 123. p. 188-191.

Gruenwald, J.(2016). Comment on "droplet shaped anode double layer and electron sheath formation in magnetically constricted anode" [Phys. Plasmas 23, 013502 (2016)] . Physics of Plasmas. 23. (2).

Gruenwald, J., Fricke, K., Fröhlich, M., Polak, M.(2016). Deposition of Copper Oxide Coatings With an Atmospheric Pressure Plasma Source: I − Characterization of the Plasma . Plasma Processes and Polymers. 13. (9). p. 946-954.

Gruenwald, J., Reynvaan, J., Eisenberg, T., Geistlinger, P.(2015). Characterisation of a simple non-thermal atmospheric pressure plasma source for biomedical research applications . Contributions to Plasma Physics. 55. (4). p. 337-346.

Gruenwald, J.(2014). Human outposts on Mars: Engineering and scientific lessons learned from history . CEAS Space Journal. 6. (2). p. 73-77.

Reynvaan, J., Gruenwald, J., Mayer, M., Knoll, P.(2014). Multiple fireballs in a reactive H₂/CH₄ plasma . IEEE Transactions on Plasma Science. 42. (10). p. 2848-2849.

Gruenwald, J.(2014). On the dispersion relation of the transit time instability in inverted fireballs . Physics of Plasmas. 21. (8).

Schrittwieser, R., Ionita, C., Rahbarnia, K., Gruenwald, J., Windisch, T., Stärz, R., Grulke, O., Klinger, T.(2013). Measurements of HF-Plasma Oscilations by means of a Laser-Heated Emissive Probe . Contributions to Plasma Physics. 53. (1). p. 92-95.

Gruenwald, J., Tskhakaya, D., Kovačič, J., Čerček, M., Gyergyek, T., Ionita, C., Schrittwieser, R.(2013). Comparison of measured and simulated electron energy distribution functions in low-pressure helium plasmas . Plasma Sources Science and Technology. 22. (1).

Stenzel, R.L., Gruenwald, J., Ionita, C., Schrittwieser, R.(2012). Pulsed, unstable and magnetized fireballs . Plasma Sources Science and Technology. 21. (1).

Stenzel, R.L., Gruenwald, J., Ionita, C., Schrittwieser, R.(2011). Pulsating fireballs with high-frequency sheath-plasma instabilities . Plasma Sources Science and Technology. 20. (4).

Stenzel, R.L., Gruenwald, J., Fonda, B., Ionita, C., Schrittwieser, R.(2011). Transit time instabilities in an inverted fireball. I. Basic properties . Physics of Plasmas. 18. (1).

Stenzel, R.L., Gruenwald, J., Ionita, C., Schrittwieser, R.(2011). Electron-rich sheath dynamics. I. Transient currents and sheath-plasma instabilities . Physics of Plasmas. 18. (6).

Stenzel, R.L., Gruenwald, J., Ionita, C., Schrittwieser, R.(2011). Electron-rich sheath dynamics. II. Sheath ionization and relaxation instabilities . Physics of Plasmas. 18. (6).

Stenzel, R., Gruenwald, J., Ionita, C., Schrittwieser, R.(2011). High-frequency instabilities in sheaths and fireballs . IEEE Transactions on Plasma Science. 39. (11 PART 1). p. 2448-2449.

On fusion chain reactions in 11B targets for laser driven aneutronic fusion. Journal of Technological and Space Plasmas.

CONFERENCE PAPER

Ionita, C., Stenzel, R.L., Gruenwald, J., Urrutia, J.M., Schrittwieser, R.W.(2021). Plasma Sheaths and Double Layers with Instabilities . 2021 International Conference on Electromagnetics in Advanced Applications, ICEAA 2021. p. 326.

Mayer, M., Reynvaan, J., Gruenwald, J., Krenn, K., Schoeberl, T., Surnev, S., Knoll, P.(2016). Diamond Like Carbon Deposition by Inverted Fireballs . Materials Today: Proceedings. 3. p. S184-S189.

Gruenwald, J., Reynvaan, J., Knoll, P.(2014). Creation and characterization of inverted fireballs in H₂ plasma . Physica Scripta. T161.

Gruenwald, J., Stenzel, R., Ionita, C., Schrittwieser, R.(2011). Further experiments on inverted fireballs . 38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts. 35 1. p. 265-268.

Schrittwieser, R., Gruenwald, J., Mehlmann, F., Windisch, T., Stärz, R., Ionita, C., Rahbarnia, K., Grulke, O., Klinger, T.(2010). New results on a laser-heated emissive probe . 37th EPS Conference on Plasma Physics 2010, EPS 2010. 3. p. 1483-1486.