Research Software Engineer
Research software engineer specializing in data analysis and signal processing, with extensive experience in photonics, solid-state physics and cryogenic measurements.
Knowledge
- Data Analysis & Signal Processing
- Python Programming
- Test-Driven Development (TDD) & CI/CD
- Instrumentation Integration & Automation
- Experimental Design & Execution
- Photonics & Cryogenics Measurements
Experience
Multitel A.S.B.L.
Jul. 2021 — present
A dynamic non-profit innovation center based in Mons, Belgium with ~100 employees, specializing in applied photonics, IoT, AI, and railway certification.
Research Software Engineer in THz Spectroscopy and Imaging
- Developed new methods to process THz-TDS data, extract additional information, and improve the quality of the results within the framework of the TERA4ALL project.
- Significantly improved refraction index profile extraction from THz-TDS data by offloading TMM calculations to a GPU.
- Improved the overall THz laboratory workflow by implementing various Python tools for measurement orchestration, FAIR data management, data analysis, and results presentation.
- Strengthened the codebase by implementing unit tests, CI/CD pipelines, and comprehensive documentation, ensuring robust and maintainable software development practices.
- Led the SAPHIRE project, developing THz-based solutions for in-situ pill coating thickness and humidity control.
Laboratoire National de Métrologie et d’Essais (LNE)
Sep. 2018 — Sep. 2020
National Metrological Laboratory, an EPIC company with ~1000 employees, Trappes, France.
Research Engineer in Quantum Hall Effect Metrology
- Implemented a flexible Python software package based on PyMeasure, optimizing scientific equipment orchestration.
- Led low-noise cryogenic quantum Hall measurements in graphene, uncovering its potential use as a resistance standard.
- Participated in the nanofabrication of hBN-encapsulated graphene samples.
Institute for Physics of Microstructures RAS
May 2017 — Sep. 2018
State-owned research institute with ~200 employees based in Nizhny Novgorod, Russia
Research Engineer in Photonics of Narrow-Gap Semiconductors
- Conducted THz and FTIR photoluminescence and photoconductivity cryogenic measurements.
- Achieved laser emission in HgCdTe heterostructures at a record wavelength.
Education
Laboratoire Charles Coulomb (L2C) / IPM RAS
Sep. 2014 — Dec. 2017
Montpellier, France / Nizhny Novgorod, Russia
Ph.D. in Physics
Physical properties of HgCdTe-based heterostructures: towards terahertz emission and detection
- Extracted the critical magnetic field in a topological insulator by implementing a double-modulation technique and using non-resonant THz imaging of Landau levels.
- First observed a temperature-driven phase transition in a topological insulator via magnetotransport.
Other relevant information
- Additional languages: French (upper-intermediate), Russian (native)
- Programming & Data Analysis: Python, Jupyter, NumPy, Pandas, Xarray, Scipy, Python Array API, PyTest, PyTorch, scikit-learn, MATLAB
- Data Visualization: Matplotlib, hvPlot, Plotly, Bokeh, Panel, OriginPro
- Measurement and Automation: PyMeasure, Bluesky, yaq, LabVIEW
- Data Management & Integration: Intake, SQL
- Document Preparation: Quarto, Pandoc, LaTeX
- Other tools: VSCode, Git, Linux, Docker, CI/CD, Zotero
Selected publications
- Kadykov, A.M., Torres, J., Krishtopenko, S.S. et al., Terahertz imaging of Landau levels in HgTe-based topological insulators, Applied Physics Letters, 108(26), 262102, 2016
- Teppe, F., Marcinkiewicz, M., Krishtopenko, S.S. et al., Temperature-driven massless Kane fermions in HgCdTe crystals, Nature Communications, 7, 12576, 2016
- Kadykov, A.M., Krishtopenko, S.S., Jouault, B. et al., Temperature-Induced Topological Phase Transition in HgTe Quantum Wells, Physical Review Letters, 120(8), 086401, 2018
- Kadykov, A.M., Teppe, F., Consejo, C. et al., Terahertz detection of magnetic field-driven topological phase transition in HgTe-based transistors, Applied Physics Letters, 107(15), 152101, 2015
- Krishtopenko, S.S., Ruffenach, S., Gonzalez-Posada, F. et al., Temperature-dependent terahertz spectroscopy of inverted-band three-layer InAs / GaSb / InAs quantum well, Physical Review B, 97(24), 245419, 2018
- Ruffenach, S., Kadykov, A.M., Rumyantsev, V.V. et al., HgCdTe-based heterostructures for terahertz photonics, APL Materials, 5(3), 035503, 2017
- Yahniuk, I., Krishtopenko, S.S., Grabecki, G. et al., Magneto-transport in inverted HgTe quantum wells, npj Quantum Materials, 4(1), 1—8, 2019
- Marcinkiewicz, M., Ruffenach, S., Krishtopenko, S.S. et al., Temperature-driven single-valley Dirac fermions in HgTe quantum wells, Physical Review B, 96(3), 035405, 2017
- Morozov, S.V., Rumyantsev, V.V., Fadeev, M. et al., Stimulated emission from HgCdTe quantum well heterostructures at wavelengths up to 19.5~um, Applied Physics Letters, 111(19), 192101, 2017
- Morozov, S.V., Rumyantsev, V.V., Kadykov, A.M. et al., Long wavelength stimulated emission up to 9.5~um from HgCdTe quantum well heterostructures, Applied Physics Letters, 108(9), 092104, 2016
- Morozov, S.V., Rumyantsev, V.V., Dubinov, A.A. et al., Long wavelength superluminescence from narrow gap HgCdTe epilayer at 100~K, Applied Physics Letters, 107(4), 042105, 2015
- Morozov, S.V., Rumyantsev, V.V., Antonov, A. et al., Time resolved photoluminescence spectroscopy of narrow gap Hg1-xCdxTe/CdyHg1-yTe quantum well heterostructures, Applied Physics Letters, 105(2), 022102, 2014
- Rumyantsev, V.V., Kozlov, D.V., Morozov, S.V. et al., Terahertz photoconductivity of double acceptors in narrow gap HgCdTe epitaxial films grown by molecular beam epitaxy on GaAs(013) and Si(013) substrates, Semiconductor Science and Technology, 32(9), 095007, 2017
- Fadeev, M.A., Rumyantsev, V.V., Kadykov, A.M. et al., Stimulated emission in the 2.8—3.5~um wavelength range from Peltier cooled HgTe/CdHgTe quantum well heterostructures, Optics Express, 26(10), 12755, 2018
- Kadykov, A.M., Consejo, C., Marcinkiewicz, M. et al., Observation of topological phase transition by terahertz photoconductivity in HgTe-based transistors, physica status solidi (c), 13(7), 534—537, 2016
- Kadykov, A.M., Consejo, C., Teppe, F. et al., Terahertz excitations in HgTe-based field effect transistors, Journal of Physics: Conference Series, 647(1), 012009, 2015
- Bovkun, L.S., Krishtopenko, S.S., Ikonnikov, A.V. et al., Magnetospectroscopy of double HgTe/CdHgTe quantum wells, Semiconductors, 50(11), 1532—1538, 2016
- Aleshkin, V.Y., Gavrilenko, L.V., Gaponova, D.M. et al., Nonresonant radiative exciton transfer by near field between quantum wells, Journal of Experimental and Theoretical Physics, 117(5), 944—949, 2013
- Morozov, S.V., Rumyantsev, V.V., Kadykov, A.M. et al., Investigation of possibility of VLWIR lasing in HgCdTe based heterostructures, Journal of Physics: Conference Series, 647(1), 012008, 2015
- Kozlov, D.V., Rumyantsev, V.V., Morozov, S.V. et al., Impurity-induced photoconductivity of narrow-gap Cadmium—Mercury—Telluride structures, Semiconductors, 49(12), 1605—1610, 2015
- Rumyantsev, V.V., Fadeev, M.A., Morozov, S.V. et al., Long-wavelength stimulated emission and carrier lifetimes in HgCdTe-based waveguide structures with quantum wells, Semiconductors, 50(12), 1651—1656, 2016
- Ikonnikov, A.V., Bovkun, L.S., Rumyantsev, V.V. et al., On the band spectrum in p-type HgTe/CdHgTe heterostructures and its transformation under temperature variation, Semiconductors, 51(12), 1531—1536, 2017
- Rumyantsev, V.V., Kadykov, A.M., Fadeev, M.A. et al., Investigation of HgCdTe waveguide structures with quantum wells for long-wavelength stimulated emission, Semiconductors, 51(12), 1557—1561, 2017
- Krishtopenko, S.S., Ikonnikov, A.V., Maremyanin, K.V. et al., Cyclotron resonance of Dirac fermions in InAs/GaSb/InAs quantum wells, Semiconductors, 51(1), 38—42, 2017
- Kozlov, D.V., Rumyantsev, V.V., Morozov, S.V. et al., Mercury vacancies as divalent acceptors in Hg1-xCdxTe/CdyHg1-yTe structures with quantum wells, Semiconductors, 50(12), 1662—1668, 2016
- Rumyantsev, V.V., Bovkun, L., Kadykov, A.M. et al., Magnetooptical Studies and Stimulated Emission in Narrow Gap HgTe/CdHgTe Structures in the Very Long Wavelength Infrared Range, Semiconductors, 52(4), 2018
- Kadykov, A.M., Teppe, F., Consejo, C. et al., Terahertz excitations in HgTe-based field effect transistors, 113—114, 2015
- Gavrilenko, V.I., Morozov, S.V., Rumyantsev, V.V. et al., THz lasers based on narrow-gap semiconductors, 1—4, 2016
- Marcinkiewicz, M., Krishtopenko, S.S., Ruffenach, S. et al., THz magnetospectroscopy of double HgTe quantum well, 1—2, 2016
- Morozov, S.V., Rumyantsev, V.V., Kadykov, A.M. et al., Long-wavelength stimulated emission in HgCdTe quantum well waveguide heterostructures, 2016-Novem, 1—2, 2016
- But, D.B., Consejo, C., Krishtopenko, S.S. et al., Terahertz cyclotron emission from HgCdTe bulk films, 2016-Novem, 1—2, 2016
- Yahniuk, I., Krishtopenko, S.S., Grabecki, G. et al., Graphene-like band structure (Hg, Cd) Te Quantum Wells for Quantum Hall Effect Metrology Applications, 229, 2017