Dr. Sergey Kovalev Profile

Dr. Sergey Kovalev

at Helmholtz-Zentrum Dresden-Rossendorf e. V.

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Author

Publications (5)

Proceedings Article | 17 March 2023 Presentation

Single-shot recording of complex THz pulses with high bandwidth, using time-stretch and Diversity Electro-Optic Sampling

Christelle Hanoun, Christophe Szwaj, Eléonore Roussel, Serge Bielawski, Pavel Evtushenko, Christof Schneider, Anton Ryzhov, Michael Kunzsch, Sergey Kovalev

Proceedings Volume PC12406, PC124060B (2023) https://doi.org/10.1117/12.2651258

KEYWORDS: Terahertz radiation, Electro optics, Terahertz spectroscopy, Terahertz sources, Spectroscopy, Diagnostics

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Proceedings Article | 1 August 2021 Presentation

Inertial spin dynamics in ferromagnetic thin films

Kumar Neeraj, Nilesh Awari, Sergey Kovalev, Debanjan Polley, Nanna Zhou Hagström, Sri Sai Phani Kanth Arekapudi, Anna Semisalova, Kilian Lenz, Bertram Green, Jan-Christoph Deinert, Igor Ilyakov, Min Chen, Mohammed Bawatna, Valentino Scalera, Massimilano d’Aquino, Claudio Serpico, Olav Hellwig, Jean-Eric Wegrowe, Michael Gensch, Stefano Bonetti

Proceedings Volume 11805, 118050H (2021) https://doi.org/10.1117/12.2595637

KEYWORDS: Spin dynamics, Magnetism, Ferromagnetics, Thin films, Terahertz radiation, Picosecond phenomena, Oscillators, Magneto-optics, Kerr effect, Femtosecond phenomena

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SPIE Journal Paper | 12 January 2021

Bulk and surface terahertz conductivity of Bi₂₋_xSb_xTe₃₋_ySe_y topological insulators

Kirill Kuznetsov, Petr Kuznetsov, Alexander Frolov, Sergey Kovalev, Igor Ilyakov, Alexander Ezhov, Galiya Kitaeva

OE, Vol. 60, Issue 08, 082012, (January 2021) https://doi.org/10.1117/12.10.1117/1.OE.60.8.082012

KEYWORDS: Bismuth, Terahertz radiation, Selenium, Tellurium, Dielectrics, Antimony, Terahertz spectroscopy, Statistical analysis, Optical engineering, Atomic force microscopy

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Proceedings Article | 14 March 2018 Presentation

Near-field THz nanoscopy at novel accelerator-based photon sources (Conference Presentation)

Lukas Eng, Frederik Kuschewski, Jonathan Döring, Lukas Wehmeier, Thales de Oliveira, Hans-Georg von Ribbeck , Denny Lang , Bertram Green , Sergey Kovalev , Nilesh Awari , Stefan Winnerl , Manfred Helm , Michael Gensch , Susanne Kehr

Proceedings Volume 10531, 105310E (2018) https://doi.org/10.1117/12.2289463

KEYWORDS: Near field scanning optical microscopy, Terahertz radiation, Temporal resolution, Super resolution microscopy, Microscopy, Spectroscopy, Photonic microstructures, Liquids, Helium, Infrared radiation

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Proceedings Article | 1 June 2015 Paper

Super-radiant high-field THz sources operating at quasi-cw rep rates

Sergey Kovalev, Bertram Green, Michael Gensch

Proceedings Volume 9512, 95121F (2015) https://doi.org/10.1117/12.2182417

KEYWORDS: Terahertz radiation, Femtosecond phenomena, X-rays, X-ray lasers, Liquid crystal lasers, Quasi continuous wave operation, Free electron lasers, Pulsed laser operation, Infrared radiation, Current controlled current source

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