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 | 456 | 2018 |
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 | 182 | 2016 |
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 | 133 | 2020 |
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 | 109 | 2020 |
Inertial spin dynamics in ferromagnets K Neeraj, N Awari, S Kovalev, D Polley, N Zhou Hagström, ... Nature Physics 17 (2), 245-250, 2021 | 108 | 2021 |
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 | 91 | 2020 |
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 | 90 | 2020 |
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 | 66 | 2017 |
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 | 64 | 2021 |
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 | 59 | 2016 |
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 | 41 | 2018 |
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 | 41 | 2011 |
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 | 37 | 2018 |
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 | 35 | 2019 |
Two alternative approaches to electro-optical detection of terahertz pulses SP Kovalev, GK Kitaeva JETP letters 94 (2), 91-96, 2011 | 34 | 2011 |
Terahertz electro-optical detection: optical phase or energy measurements SP Kovalev, GK Kitaeva JOSA B 30 (10), 2650-2656, 2013 | 31 | 2013 |
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 | 31 | 2010 |
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 | 31 | 2010 |
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 | 30 | 2021 |
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 | 27 | 2021 |