Team

Bright people are always welcome to join our team!

nextnano

nextnano team
Stefan Birner

Dr. Stefan Birner

Managing Director and
Founder

Stefan studied Physics at the universities of Bayreuth (Germany), Exeter (UK), Ohio State (USA) and the Technische Universität München (Germany).
During his studies, he gained experience through internships at companies such as Infineon Technologies and Genius CAD-Software.

Stefan holds a Master of Physics degree from the University of Exeter and a PhD in Physics from the Technische Universität München where he worked at the Walter Schottky Institute in the field of Theoretical Semiconductor Physics under the supervision of Prof. Peter Vogl.

In October 2012 he founded the nextnano GmbH where he serves as the managing director since November 2012.

Publications


Contact

  • stefan.birner [at] nextnano.com
  • Dr. Stefan Birner
  • Stefan Birner's profile on LinkedIn

TG

Dr. Thomas Grange

Director of Research & Development

Thomas is Chairman and Research & Development Director of nextnano Lab SAS, an R&D company located in Grenoble, France.

Before founding nextnano Lab SAS, Thomas was working as Director of Research & Development at nextnano GmbH (2017-2021).

He is an expert on quantum cascade laser modeling using the non-equilibrium Green's function method.

Thomas was born in France and studied Physics at the École normale supérieure de Lyon (ENS Lyon) and at the École normale supérieure (ENS), Paris. He holds a bachelor (License) and a master (Maîtrise) degree in Physics from ENS Lyon and a Master in Quantum Physics degree from the ENS, as well as a PhD in Physics from Université Paris VI (Université Pierre-et-Marie-Curie). His PhD work was on the theory of electron-phonon interaction, polaron formation and dynamics in quantum dots in the group of Robson Ferreira and Gérald Bastard at the ENS. During his studies, he spent a few months with Danny Segal at the Imperial College London (UK) and with Lu J. Sham at the University of California, San Diego (USA).

Before joining nextnano in 2017, he worked for 8 years as a Postdoc. Half of this time he spent with a Humboldt Research Fellowship at the Walter Schottky Institute of the Technische Universität München (Germany) in the group of Peter Vogl on the modeling of quantum cascade lasers. At the Institut Néel (CNRS) in Grenoble (France) he was working in the Nanophysics and Semiconductors group of Alexia Auffèves on modeling of quantum dots and nitrogen-vacancy centers in diamond.

Publications


Contact

  • thomas.grange [at] nextnano-lab.com
  • Thomas Grange's profile on LinkedIn


AT

Dr. Alex Trellakis

Research & Development

Alex was born in the Netherlands and has a profound knowledge in both Physics and Computer Science. He holds a master (Diplom) degree in Physics from Friedrich-Wilhelms Universität Bonn (Germany), and both a Master of Science in Physics and a Master of Computer Science degree from the University of Illinois at Urbana-Champaign (USA), as well as a PhD in Physics from the University of Illinois at Urbana-Champaign (USA). During his PhD he investigated computational approaches to silicon-based nanostructures in the group of Prof. Umberto Ravaioli.

After his graduation, Alex worked 1 year as Research Scientist at Science Applications International Corporation (now Leidos) (USA) and 2 years as Senior TCAD Engineer at Intel Corporation (USA). Then, from 2002 to 2006, he worked as assistant professor at the Walter Schottky Institute of the Technische Universität München (Germany) in the group of Prof. Peter Vogl where he developed the nextnano++ software. Afterwards, Alex has been working for many years as software architect for DrVis Software GmbH and as technical consultant in a patent law firm.

At nextnano, Alex is our expert on device physics, numerical methods and software engineering.

Contact

alex.trellakis [at] nextnano.com


MCdSF

Maria Cecilia da Silva Figueira

Research & Development and Customer Support

Maria was born in São Paulo, Brazil and holds a BSc degree in Physics, a MSc degree in Nuclear Physics and an Electrical Engineering degree, all from the Universidade de São Paulo, Brazil. Before joining nextnano she worked as a Digital Integrated Circuit Design Engineer for the Ministry of Science, Technology and Innovation of Brazil. At nextnano she is leading our LED, laser diode and nanotransistor modeling business and makes our users happy by answering their support questions.

Publications


Contact

maria.figueira [at] nextnano.com


CB

Carola Burkl

Software Development

Carola holds a BSc degree in Engineering Physics from the Hochschule München. During her Bachelor thesis “Optimization of Terahertz Quantum Cascade Lasers – Numerical analysis of the Influence of Material Parameters on the Gain” she was using the nonequilibrium Green's function approach to simulate quantum transport in QCLs.
Currently she is studying towards a MSc degree in Micro- and Nanotechnology at the Hochschule München.
In 2012 she founded the school “Ecole Assokoto des Sourds” in Togo. If you want to support these activities, you can also contribute with a donation.

At nextnano, Carola is responsible for the nextnanomat graphical user interface.

Contact

carola.burkl [at] nextnano.com


TS

Takuma Sato

Research & Development

Takuma was born in Aichi, Japan and holds BSc (2018) and MSc (2021) degrees in Physics from Tohoku University in Sendai, Japan. He studied theoretically the magnetoelastic coupling and spintronics in insulators under the supervision of Prof. Gerrit E. W. Bauer in the Condensed Matter Theory group at the Institute for Materials Research (IMR) of Tohoku University.
In 2019-2020, he worked in our R&D team as an intern via the 1-year program “Vulcanus in Europe” of the EU-Japan Centre for Industrial Cooperation and developed the nextnano++ tutorials on laser diodes, wurtzite piezoelectricity, solar cells and optical absorption. From May 2021, he engages in developing the nextnano.NEGF software within the EU Innovative Training Network QUANTIMONY (PhD programme).

Publications


Contact

takuma.sato [at] nextnano.com


JS

Jörg Stratmann

Software Development

Jörg holds a Diplom degree in Computer Science from the University of Bonn, Germany.
During his diploma thesis at the University of Bonn he was working on robotics and artificial intelligence. Since 1999 he has been working as a software developer for a German television channel.

He works as a part-time employee for nextnano and as our cloud computing expert he is responsible for the integration of HTCondor, Azure and aws into our graphical user interface.

Contact

joerg.stratmann [at] nextnano.com


KO

Kemal Öztas

Research & Development

Kemal was born in Istanbul, Turkey. He holds a BSc degree in Engineering Science from the Technische Universität München. He is currently studying Mathematics in Science and Engineering (MSc) at the Technische Universität München with a DAAD scholarship.

Contact

kemal.oeztas [at] nextnano.com


OY

Dr. Oleg Yevtushenko

Research & Development

Oleg was born in Kharkov, Ukraine. He holds a Master of Science Diploma in Solid State Physics from Kharkov Polytechnic University, Kharkov, Ukraine and a PhD in Solid State Physics from Institute of Radiophysics and Electronics, National Academy of Sciences of Ukraine (IRE NASU), Kharkov. His scientific career path included positions at

  • Institute of Radiophysics and Electronics, National Academy of Sciences of Ukraine (IRE NASU), Kharkov, Ukraine
  • Max Planck Institute for the Physics of Complex Systems, Dresden, Germany
  • University of Regensburg, Regensburg, Germany
  • Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy
  • Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
  • Ludwig-Maximilians-Universität München, Munich, Germany.
His research activities are in the areas of
  • Symmetry protected transport in topological insulators and quantum wires
  • Low-dimensional systems with interactions
  • Transport and quantum phenomena in mesoscopic systems and carbon nanotubes
  • Localization transition and criticality in disordered systems
  • Unconventional random matrix theories and their application in physics
  • Transport and rectification in classically chaotic systems.
Currently he is working as a Senior Scientist at the Institute for Theoretical Condensed Matter Physics at the Karlsruhe Institute of Technology (KIT), Germany.

He is working part-time at nextnano on advanced research topics.

Contact

oleg.yevtushenko [at] nextnano.com


Heorhii Yehiazarian

Research & Development

Heorhii was born in Ukraine. He holds a BSc degree in Applied Physics and Energy Systems from the National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” in Kyiv, Ukraine. Currently, he is studying towards his MSc degree in Material Science in Rennes, France and Munich, Germany (Erasmus Mundus programme of Université de Rennes, Technische Universität München and Ludwig-Maximilians-Universität München).

At nextnano, he is working on R&D and on the nextnanopy Python package.

Contact

heorhii.yehiazarian [at] nextnano.com


NM

Naoki Mitsui

Research & Development

Naoki was born in Japan. He holds a BSc degree in Physics from Waseda University in Tokyo and MSc degree in Informatics from Nagoya University. In his BSc degree, he studied Physics and Electrical Engineering. In his MSc research, he examined the relationship between quantum theory and thermodynamics using quantum information theory under the supervision of Prof. Francesco Buscemi.

At nextnano, he is doing an R&D internship via the 1-year program “Vulcanus in Europe 2021-2022” of the EU-Japan Centre for Industrial Cooperation.

Contact

naoki.mitsui [at] nextnano.com


Alumni

MF

Dr. Max Falkowski

Software Development

Max was born in Ukraine and studied Physics at the Ludwig-Maximilians-Universität München (LMU). He holds a BSc and a MSc degree in Physics from LMU where he worked as an experimental physicist on low-dimensional semicondutor structures in the Quantum Transport group at the Chair of Solid State Physics. In 2020, he obtained a PhD degree in Chemistry from the Technische Universität München.

Before joining nextnano in 2014, he worked at attocube systems AG.

now at Infineon Technologies AG, Germany


ZJ

Zoltán Jéhn

Software Development

Zoltán was born in Hungary and holds a BSc degree in Theoretical Physics and a BSc degree in Chemical Engineering from the Budapest University of Technology and Economics (BME), and a MSc degree in Applied and Engineering Physics of the Technische Universität München.

In 2010 he won the gold medal and the special prize for the best experimental work, and in 2011 the bronze medal at the International Physics Olympiad (IPhO) in Zagreb (Kroatia) and Bangkok (Thailand), respectively. At the national level, he was 2nd (2010) and 5th (2011), respectively.

In 2017 he founded Xiences where he develops the XienceSim simulation software.
Currently he is studying towards his PhD degree.

now at Technische Universität Wien, Austria


JLW

Jun-Liang Wang

Research & Development

Jun-Liang was born in Madrid, Spain. He holds a BSc degree in Nanoscience & Nanotechnology from the Autonomous University of Barcelona (UAB), Spain, and a MSc degree in Materials Engineering from the Technical University of Madrid (UPM), Spain. Currently he is working towards his PhD degree at the Institut Néel (CNRS) in Grenoble, France, on the topic “Towards a flying qubit architecture with single electrons using surface acoustic waves”.

Within the Grenoble Quantum Engineering (GreQuE) doctoral programme, he spent two months at nextnano in 2020 for an internship where he developed the nextnanopy Python package.


AV

Amit Vashisht

Research & Development

Amit was born in India. He holds a BSc degree in Physics from the University of Delhi, India, and a MSc degree in Physics from the Indian Institute of Technology Delhi, India. Currently he is working towards his PhD degree at the Laboratoire de physique et modélisation des milieux condensés (LPMMC), Université Grenoble Alpes and CNRS, in Grenoble, France, on the topic “Quantum Properties of Exciton Polaritons”.

Within the Grenoble Quantum Engineering (GreQuE) doctoral programme, he spent two months at nextnano in 2020 for an internship where he set up our new manual (Sphinx/Read the Docs).


GA

Gizem Acar

Research

Gizem was born in Ankara, Turkey. She holds a BSc degree in Physics from Middle East Technical University in Turkey. She attended advanced courses that included high-level optic literature design, computer networks, and digital electronics during her education career. After graduation, she received a 100% merit-based scholarship from Sabanci University (SU) in Istanbul, Turkey, where she completed her thesis for her MSc in Electronics Engineering while working as a teaching assistant. As a member of the SU-MEMS group she worked on developing portable low power embedded systems for mHealth applications and cell separation using microfluidics. After graduation, she studied organic optoelectronic devices for biomedical applications at Durham University, UK. She assembled organic light emitting transistors (OLET) and characterized them for biomedical applications.

In July 2021 she joined Lancaster University, UK, where she is working within the EU Innovative Training Network QUANTIMONY (PhD programme) towards her PhD in the Quantum Nanotechnology group (Prof. Manus Hayne). Her research is on telecoms-wavelength GaSb quantum ring single-photon LEDs. Within the QUANTIMONY project she spent a 1-month secondment at nextnano in 2021.

Contact

gizem.acar [at] nextnano.com


DNA

Daryoush Nosraty Alamdary

Research & Development

Daryoush studied Electrical Engineering at the American University of Sharjah in the United Arab Emirates and Physics in both Vienna and Munich. He holds a BSc and a MSc degree in Physics from the University of Vienna, Austria.
During his master thesis at the University of Vienna he worked on (TD-)DFT simulations of electronic properties and plasmonics in 2D materials. Previously, he was working at the Fraunhofer Research Institution for Microsystems and Solid State Technologies EMFT in Munich.

now studying towards his MSc in Condensed Matter Physics at the Technische Universität München, Germany


Jonathan Becker

now at Microsoft Quantum Lab, Copenhagen, Denmark


Dr. Bernhard Mittermeier

now at RF360 Europe GmbH - A Qualcomm TDK Joint Venture, München, Germany


Dr. Dominik Nowatschin

now at PPI AG, Hamburg, Germany


Thomas Hofmann

now at msg life ag, München, Germany