THz science and technology
Key publications
2023
T. Troha, F. Klimovič, T. Ostatnický, F. Kadlec, P. Kužel, and H. Němec
Ultrafast long-distance electron-hole plasma expansion in GaAs mediated by stimulated emission and reabsorption of photons
Phys. Rev. Lett. 130, 226301 (2023).P. Kumar, M. Šilhavík, M. R. Parida, H. Němec, J. Červenka, and P. Kužel
Terahertz charge transport dynamics in 3D graphene networks with localization and band regimes
Nanoscale Adv. 5, 2933 (2023).V. Chlan, M. Adamec, H. Štěpánková, V. G. Thomas, and F. Kadlec
Orientation and dynamics of water molecules in beryl
J. Chem. Phys. 158, 124308 (2023).S. Ramesh, E. Skořepová, V. Eigner, V. Chelod Paingad, V. Zvoníček, P. Kužel, and M. Šoóš
Structurally unique salts of cyamemazine and their pharmaceutical implications
Cryst. Growth Des. 23, 168 (2023).2022
H. Hempel, T. J. Savenjie, M. Stolterfoht, J. Neu, M. Failla, V. C. Paingad, P. Kužel, E. J. Heilweil, J. A. Spies, M. Schleuning, J. Zhao, D. Friedrich, K. Schwarzburg, L. D. A. Siebbeles, P. Dörflinger, V. Dyakonov, R. Katoh, M. J. Hong, J. G. Labram, M. Monti, E. Butler-Caddle, J. Lloyd-Hughes, M. M. Taheri, Jason B. Baxter, T. J. Magnanelli, S. Luo, J. M. Cardon, S. Ardo, and T. Unold
Predicting solar cell performance from terahertz and microwave spectroscopy
Adv. Energy Mater. 12, 2102776 (2022).V. Pushkarev, H. Němec, V. C. Paingad, J. Maňák, V. Jurka, V. Novák, T. Ostatnický, and P. Kužel
Charge transport in single-crystalline GaAs nanobars: impact of band bending revealed by terahertz spectroscopy
Adv. Funct. Mater. 32, 2107403 (2022).D. Hovančík, D. Repček, F. Borodavka, Ch. Kadlec, K. Carva, P. Doležal, M. Kratochvílová, P. Kužel, S. Kamba, V. Sechovský, and J. Pospíšil
Terahertz magnetic and lattice excitations in van der Waals ferromagnet VI3
J. Phys. Chem. Lett. 13, 11095 (2022).M. Šindler, F. Kadlec, and C. Kadlec
Onset of a superconductor-insulator transition in an ultrathin NbN film under in-plane magnetic field studied by terahertz spectroscopy
Phys. Rev. B 105, 014506 (2022).2021
V. C. Paingad, J. Kunc, M. Rejhon, I. Rychetský, I. Mohelský, M. Orlita, and P. Kužel
Ultrafast plasmon thermalization in epitaxial graphene probed by time-resolved THz spectroscopy
Adv. Funct. Mater. 31, 2105763 (2021).T. Troha, T. Ostatnický, and P. Kužel
Improving security in terahertz wireless links using beam symmetry of vortex and Gaussian beams
Opt. Express 29, 30461 (2021).L.N. Alyabyeva, A.S. Prokhorov, D.A. Vinnik, V.B. Anzin, A.G. Ahmed, A. Mikheykin, P. Bednyakov, C. Kadlec, F. Kadlec, E. de Prado, J. Prokleška, P. Proschek, S. Kamba, A.V. Pronin, M. Dressel, V.A. Abalmasov, V.V. Dremov, S. Schmid, M. Savinov, P. Lunkenheimer, and B.P. Gorshunov
Lead-substituted barium hexaferrite for tunable terahertz optoelectronics
NPG Asia Mater. 13, 63 (2021).2020
P. Kužel and H. Němec,
Terahertz Spectroscopy of Nanomaterials: a Close Look at Charge-Carrier Transport
Adv. Opt. Mater. 8, 1900623 (2020).2019
I. Nevinskas, F. Kadlec, C. Kadlec, R. Butkute, and A. Krotkus,
Terahertz pulse emission from epitaxial n-InAs in a magnetic field
J. Phys. D-Appl. Phys. 52, 365301 (2019).J. Kuchařík, H. Němec, and T. Ostatnický,
Terahertz conductivity and coupling between geometrical and plasmonic resonances in nanostructures
Phys. Rev. B 99, 035407 (2019).2018
T. Ostatnický, V. Pushkarev, H. Němec, and P. Kužel,
Quantum theory of terahertz conductivity of semiconductor nanostructures
Phys. Rev. B 97, 085426 (2018).M. Šindler, C. Kadlec, P. Kužel, K. Ilin, M. Siegel, and H. Němec,
Departure from BCS response in photoexcited superconducting NbN films observed by terahertz spectroscopy
Phys. Rev. B 97, 054507 (2018).J. Vít, F. Kadlec, C. Kadlec, F. Borodavka, Y.S. Chai, K. Zhai, Y. Sun and S. Kamba,
Electromagnon in the Y-type hexaferrite BaSrCoZnFe11AlO22
Phys. Rev. B 97, 134406 (2018).2017
V. Pushkarev, T. Ostatnický, H. Němec, T. Chlouba, F. Trojánek, P. Malý, M. Zacharias, S. Gutsch, D. Hiller, and P. Kužel,
95, 125424 (2017).
Quantum behavior of terahertz photoconductivity in silicon nanocrystals networks,
Phys. Rev. BS. Bamini, H. Němec, K. Žídek, M. Abdellah, M. J. Al-Marri, P. Chábera, C. Ponseca, K. Zheng, and T. Pullerits,
Time-resolved terahertz spectroscopy reveals the influence of charged sensitizing quantum dots on the electron dynamics in ZnO,
Phys. Chem. Chem. Phys. 19, 6006 (2017).2016
B. Gorshunov, V. Torgashev, E. Zhukova, V. Tomas, M. Belyanchikov, C. Kadlec, F. Kadlec, M. Savinov, T. Ostapchuk, J. Petzelt, J. Prokleška, P. Tomas, E. Pestrjakov, D. Fursenko, G. Shakurov, A. Prokhorov, V. Gorelik, L. Kadyrov, V. Uskov, R. Kremer, and M. Dressel,
Incipient ferroelectricity of water molecules confined to nano-channels of beryl
Nat. Commun. 7, 12842 (2016).I. Khromova, P. Kužel, I. Brener, J. L. Reno, U.-C. Chung Seu, C. Elissalde, M. Maglione, P. Mounaix, and O. Mitrofanov,
Splitting of magnetic dipole modes in anisotropic TiO2 micro-spheres,
Laser Photon. Rev. 10, 681 (2016).L. Nádvorník, P. Němec, T. Janda, K. Olejník, V. Novák, V. Skoromets, H. Němec, P. Kužel, F. Trojánek, T. Jungwirth, and J. Wunderlich,
Long-range and high-speed electronic spin-transport at a GaAs/AlGaAs semiconductor interface,
Sci. Rep. 6, 22901 (2016).V. Zajac, H. Němec, and P. Kužel,
Picosecond charge transport in rutile at high carrier densities studied by transient terahertz spectroscopy
Phys. Rev. B 94, 115206 (2016).2015
P. Pikna, V. Skoromets, C. Becker, A. Fejfar, and P. Kužel,
Thin film polycrystalline Si solar cells studied in transient regime by optical pump-terahertz probe spectroscopy,
Appl. Phys. Lett. 107, 233901 (2015).V. Skoromets, H. Němec, J. Kopeček, P. Kužel, K. Peters, D. Fattakhova-Rohlfing, A. Vetushka, M. Müller, K. Ganzerová, and A. Fejfar,
Conductivity Mechanisms in Sb-Doped SnO2 Nanoparticle Assemblies: DC and Terahertz Regime,
J. Phys. Chem. C 119, 19485 (2015).2014
S. A. Jensen, K.-J. Tielrooij, E. Hendry, M. Bonn, I. Rychetský, and H. Němec,
Terahertz depolarization effects in colloidal TiO2 films reveal particle morphology,
J. Phys. Chem. C 118, 1191 (2014).P. Kužel and H. Němec,
Terahertz conductivity in nanoscaled systems: effective medium theory aspects,
J. Phys. D: Appl. Phys. 47, 374005 (2014).2013 and older
C. Kadlec, F. Kadlec, V. Goian, M. Gich, M. Kempa, S. Rols, M. Savinov, J. Prokleška, M. Orlita, and S. Kamba,
Electromagnon in ferrimagnetic ε-Fe2O3 nanograin ceramics,
Phys. Rev. B 102, 241106 (2013).H. Němec, C. Kadlec, F. Kadlec, P. Kužel, R. Yahiaoui, U-C. Chung, C. Elissalde, M. Maglione, and P. Mounaix,
Resonant magnetic response of TiO2 microspheres at terahertz frequencies,
Appl. Phys. Lett. 100, 061117 (2012).H. Němec, J. Rochford, O. Taratula, E. Galoppini, P. Kužel, T. Polívka, A. Yartsev, and V. Sundström,