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Sergey Kovalev
Sergey Kovalev
Verified email at tu-dortmund.de
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Year
Extremely efficient terahertz high-harmonic generation in graphene by hot Dirac fermions
HA Hafez, S Kovalev, JC Deinert, Z Mics, B Green, N Awari, M Chen, ...
Nature 561 (7724), 507-511, 2018
4762018
High-field high-repetition-rate sources for the coherent THz control of matter
B Green, S Kovalev, V Asgekar, G Geloni, U Lehnert, T Golz, M Kuntzsch, ...
Scientific reports 6 (1), 22256, 2016
1822016
Terahertz nonlinear optics of graphene: from saturable absorption to high‐harmonics generation
HA Hafez, S Kovalev, KJ Tielrooij, M Bonn, M Gensch, D Turchinovich
Advanced Optical Materials 8 (3), 1900771, 2020
1392020
Phase-resolved Higgs response in superconducting cuprates
H Chu, MJ Kim, K Katsumi, S Kovalev, RD Dawson, L Schwarz, ...
Nature communications 11 (1), 1793, 2020
1232020
Inertial spin dynamics in ferromagnets
K Neeraj, N Awari, S Kovalev, D Polley, N Zhou Hagström, ...
Nature Physics 17 (2), 245-250, 2021
1142021
Non-perturbative terahertz high-harmonic generation in the three-dimensional Dirac semimetal Cd3As2
S Kovalev, RMA Dantas, S Germanskiy, JC Deinert, B Green, I Ilyakov, ...
Nature communications 11 (1), 2451, 2020
1022020
Grating-graphene metamaterial as a platform for terahertz nonlinear photonics
JC Deinert, D Alcaraz Iranzo, R Pérez, X Jia, HA Hafez, I Ilyakov, N Awari, ...
ACS nano 15 (1), 1145-1154, 2020
962020
Electrical tunability of terahertz nonlinearity in graphene
S Kovalev, HA Hafez, KJ Tielrooij, JC Deinert, I Ilyakov, N Awari, ...
Science advances 7 (15), eabf9809, 2021
712021
Probing ultra-fast processes with high dynamic range at 4th-generation light sources: Arrival time and intensity binning at unprecedented repetition rates
S Kovalev, B Green, T Golz, S Maehrlein, N Stojanovic, AS Fisher, ...
Structural Dynamics 4 (2), 2017
652017
Narrow-band tunable terahertz emission from ferrimagnetic Mn3-xGa thin films
N Awari, S Kovalev, C Fowley, K Rode, RA Gallardo, YC Lau, D Betto, ...
Applied Physics Letters 109 (3), 2016
602016
Selective THz control of magnetic order: new opportunities from superradiant undulator sources
S Kovalev, Z Wang, JC Deinert, N Awari, M Chen, B Green, S Germanskiy, ...
Journal of Physics D: Applied Physics 51 (11), 114007, 2018
432018
A method of calibration of terahertz wave brightness under nonlinear-optical detection
GK Kitaeva, SP Kovalev, AN Penin, AN Tuchak, PV Yakunin
Journal of Infrared, Millimeter and Terahertz Waves, 1-13, 2011
412011
Photon diagnostics at the FLASH THz beamline
R Pan, E Zapolnova, T Golz, AJ Krmpot, MD Rabasovic, J Petrovic, ...
Journal of synchrotron radiation 26 (3), 700-707, 2019
382019
Magnetic field dependence of antiferromagnetic resonance in NiO
Z Wang, S Kovalev, N Awari, M Chen, S Germanskiy, B Green, JC Deinert, ...
Applied physics letters 112 (25), 2018
372018
Successful user operation of a superconducting radio-frequency photoelectron gun with Mg cathodes
J Teichert, A Arnold, G Ciovati, JC Deinert, P Evtushenko, M Justus, ...
Physical Review Accelerators and Beams 24 (3), 033401, 2021
312021
Terahertz electro-optical detection: optical phase or energy measurements
SP Kovalev, GK Kitaeva
JOSA B 30 (10), 2650-2656, 2013
312013
Dispersion of the dielectric function real part for Mg: LiNbO 3 crystals at terahertz frequencies
KA Kuznetsov, SP Kovalev, GK Kitaeva, TD Wang, YY Lin, YC Huang, ...
Applied Physics B: Lasers and Optics 101 (4), 811-815, 2010
312010
Quasi-phase-matched probe-energy electro-optic sampling as a method of narrowband terahertz detection
GK Kitaeva, SP Kovalev, II Naumova, RA Akhmedzhanov, IE Ilyakov, ...
Applied Physics Letters 96, 071106, 2010
312010
Milliwatt terahertz harmonic generation from topological insulator metamaterials
KJ Tielrooij, A Principi, DS Reig, A Block, S Varghese, S Schreyeck, ...
Light: Science & Applications 11 (1), 315, 2022
302022
Terahertz signatures of ultrafast Dirac fermion relaxation at the surface of topological insulators
S Kovalev, KJ Tielrooij, JC Deinert, I Ilyakov, N Awari, M Chen, ...
npj Quantum Materials 6 (1), 84, 2021
292021
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