Publications TELBE

2022

K.-J. Tielrooij, A. Principi, D. S. Reig, A. Block, S. Varghese, S. Schreyeck, K. Brunner, G. Karczewski, I. Ilyakov, A. Ponomaryov, T. V. A. G. de Oliveira, M. Chen, J.-C. Deinert, C. Gomez Carbonell, S. O. Valenzuela, L. W. Molenkamp, T. Kiessling, G. V. Astakhov and S. Kovalev
Milliwatt terahertz harmonic generation from topological insulator metamaterials
Light Sci Appl 11, 315 (2022).

J. Vít, D. Repček, C. Kadlec, F. Kadlec, N. Adhlakha, P. Di Pietro, F. Piccirilli, S. Kovalev, J.-C. Deinert, I. Ilyakov, N. Awari, M. Chen, J. Buršík, C. B. Park, K. H. Kim, M. Gensch, A. Perucchi, and Stanislav Kamba
Search for Nonlinear THz Absorption by Electromagnons in Multiferroic Hexaferrites
J. Phys. Soc. Jpn. 91, 104703 (2022)

M. Chen, T. V. A. G. de Oliveira, I. Ilyakov, T. Nörenberg, F. Kuschewski, J.-C. Deinert, N. Awari, A. Ponomaryov, M. Kuntzsch, S. C. Kehr, L. M. Eng, M. Gensch, and S. Kovalev
Terahertz-slicing — an all-optical synchronization for 4th generation light sources
Optics Express 30, 26955 (2022)


2021

S. Kovalev, T. Dong, L.-Y. Shi, C. Reinhoffer, T.-Q. Xu, H.-Z. Wang, Y. Wang, Z.-Z. Gan, S. Germanskiy, J.-C. Deinert, I. Ilyakov, Igor P. H. van Loosdrecht, D. Wu, N.-L. Wang, J. Demsar, Z. Wang
Band-selective third-harmonic generation in superconducting MgB2: Possible evidence for the Higgs amplitude mode in the dirty limit
Physical Review B 104, L140505 (2021)

S. Kovalev, K.-J. Tielrooij, J.-C. Deinert, I. Ilyakov, N. Awari, M. Chen, A. Ponomaryov, M. Bawatna, T. V. A. G. de Oliveira, L. M. Eng, K. A. Kuznetsov, D. A. Safronenkov, G. Kh. Kitaeva, P. I. Kuznetsov, H. A. Hafez, D. Turchinovich, M. Gensch
Terahertz signatures of ultrafast Dirac fermion relaxation at the surface of topological insulators
npj Quantum Mater. 6, 84 (2021)

S. Kovalev, H. A.Hafez, K.-J.Tielrooij, J.-C. Deinert, I. Ilyakov, N. Awari, D. Alcaraz, K. Soundarapandian, D. Saleta, S. Germanskiy, M. Chen, M. Bawatna, B. Green, F. H.L.Koppens, M. Mittendorff, M. Bonn, M. Gensch, D.Turchinovich
Electrical tunability of terahertz nonlinearity in graphene
Sci. Adv. 2021, 7:eabf9809 (2021)

K. Neeraj, N. Awari, S. Kovalev, D. Polley, N. Z. Hagström, S. S. P. K. Arekapudi, A. Semisalova, K. Lenz, B. Green, J.-C.Deinert, I. Ilyakov, M. Chen, M. Bawatna, V. Scalera, M. d’Aquino, C. Serpico, O. Hellwig. J.-E. Wegrowe, M. Gensch, S. Bonetti
Inertial spin dynamics in ferromagnets
Nature Physics 17, 245 (2021)


2020

J.-C. Deinert, D. Alcaraz Iranzo, R. Perez, X. Jia, H. Hafez, I. Ilyakov, N. Awari, M. Chen, M. Bawatna, A. Ponomaryov, S. Germanskiy, M. Bonn, F.H.L. Koppens, D. Turchinovich, M. Gensch, S. Kovalev, K.J. Tielrooij
Grating-graphene Metamaterial as a Platform for Terahertz Nonlinear Photonics
ACS Nano 15, 1145 (2020)

S. Kovalev, R. M. A. Dantas, S. Germanskiy, J.-C. Deinert, B. Green, I. Ilyakov, N. Awari, M. Chen, M. Bawatna, J. Ling, F. Xiu, P. H. M. van Loosdrecht, P. Surówka, T. Oka and Zhe Wang
Non-perturbative terahertz high-harmonic generation in the three-dimensional Dirac semimetal Cd3As2
Nat. Commun. 11 , 2451 (2020)

H. Chu, M.-J. Kim, K. Katsumi, S. Kovalev, R. D. Dawson, L. Schwarz,N. Yoshikawa, G. Kim, D. Putzky, Z. Z. Li, H. Raffy, S. Germanskiy, J.-Chr. Deinert, N. Awari, I. Ilyakov, B. Green, M. Chen, M. Bawatna, G. Cristiani, G. Logvenov, Y. Gallais, A. V. Boris, B. Keimer, A. P. Schnyder, D. Manske, M. Gensch, Z. Wang, R. Shimano and S. Kaiser
Phase-resolved Higgs response in superconducting cuprates
Nat. Commun. 11 , 1793 (2020)

H. A. Hafez, S. Kovalev, K.-J. Tielrooij, M. Bonn, M. Gensch and D. Turchinovich
Terahertz Nonlinear Optics of Graphene: From Saturable Absorption to High-Harmonic generation
Adv. Optical Mater.8 , 1900771(2020)


2019

M Chen, J-C Deinert, B Green, Z Wang, I Ilyakov, N Awari, M Bawatna, S Germanskiy, TVAG de Oliveira, G Geloni, T Tanikawa, M Gensch, S Kovalev
Pulse- and field-resolved THz-diagnostics at 4th generation lightsources
Optics Express27 , 32360 (2019)


2018

S. Kovalev, Zhe Wang, J.C. Deinert, N. Awari, M. Chen, B. Green, S. Germanskiy, TVAG de Oliveira, JS Lee, A. Deac, D. Turchinovich, N. Stojanovic, S. Eisebitt, I. Radu, S. Bonetti, T. Kampfrath, M. Gensch
Selective THz control of magnetic order: new opportunities from superradiant undulator sources
J. Phys. D: Applied Physics 51 , 114007(2018)

M. Chen, S. Kovalev, N. Awari, Z. Wang, S. Germanskiy, B. Green, J.-C. Deinert, M. Gensch
Towards femtosecond-level intrinsic laser synchronization at fourth generation light sources
Optics Letters 43, 2213 (2018)

Z. Wang, S. Kovalev, N. Awari, M. Chen, S. Germanskiy, B. Green, J.-C. Deinert, T. Kampfrath, J. Milano, M. Gensch
Magnetic field dependence of antiferromagnetic resonance in NiO
Applied Physics Letters 112, 252404 (2018)

M. Laabs, N. Neumann, B. Green, N. Awari, J. Deinert, S. Kovalev, D. Plettemeier, M. Gensch
On-Chip THz spectrometer for bunch compression fingerprinting at fourth-generation light sources
Journal of Synchrotron Radiation 25, 1509 (2018)

H. A. Hafez, S. Kovalev, J.-C. Deinert, Z. Mics, B. Green, N. Awari, M. Chen, S. Germanskiy, U. Lehnert,J.Teichert, Z. Wang, K.-J. Tielrooij, Z. Liu, Z. Chen, A. Narita, K. Müllen, M. Bonn, M. Gensch, D. Turchinovich
Extremely efficient terahertz high harmonic generation in graphene by hot Dirac fermions
Nature 561, 507 (2018)


2017

S. Kovalev, B. Green, T. Golz, S. Maehrlein, N. Stojanovic, A. S. Fisher, T. Kampfrath, and M. Gensch
Probing ultra-fast processes with high dynamic range at 4th-generation light sources: Arrival time and intensity binning at unprecedented repetition rates
Struct. Dyn. 4, 024301 (2017)


2016

N. Awari, S. Kovalev, C. Fowley , K. Rode, R. A. Gallardo, Y.-C. Lau, D. Betto, N. Thiyagarajah, B. Green, O. Yildirim, J. Lindner, J. Fassbender , J. M. D. Coey, A. M. Deac and M. Gensch
Narrow-band tunable terahertz emission from ferrimagnetic Mn3-xGa thin films
Appl. Phys. Lett. 109, 032403 (2016)

M. Schiselski, M. Laabs, N. Neumann, B. Green, S. Kovalev, M. Gensch, D. Plettemeier,
A planar Schottky diode based integrated THz detector for fast electron pulse diagnostics,
2016 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS), 978-1-5090-0698-4 (2016)

B. Green, S. Kovalev, V. Asgekar, G. Geloni, U. Lehnert, T. Golz, M. Kuntzsch, C. Bauer, J. Hauser, J. Voigtlaender, B. Wustmann, I. Koesterke, M. Schwarz, M. Freitag,A. Arnold, J. Teichert, M. Justus, W. Seidel, C. Ilgner, N. Awari, D. Nicoletti, S. Kaiser, Y. Laplace, S. Rajasekaran, L. Zhang, S. Winnerl, H. Schneider, G. Schay, I. Lorincz, A. A. Rauscher, I. Radu, S. Mährlein, T. H. Kim, J. S. Lee, T. Kampfrath, S. Wall, J. Heberle, A. Malnasi-Csizmadia, A. Steiger, A. S. Müller, M. Helm,U. Schramm, T. Cowan, P. Michel, A. Cavalleri, A. S. Fisher, N. Stojanovic & M. Gensch
High-field High-repetition-rate Sources for the Coherent THz Control of Matter,
Sci. Rep. 6, 22256 (2016)