16 citations · 51 across the 7 of their papers we have counts for
7 papers
Photon-assisted ultrafast electron-hole plasma expansion in direct band semiconductors
T. Troha, F. Klimovič, T. Ostatnický +2
Time-resolved terahertz spectroscopy is used to investigate formation and ultrafast long-distance propagation of electron-hole plasma in strongly photoexcited GaAs and InP. The obs…
Nanoscale Terahertz Conductivity and Ultrafast Dynamics of Terahertz Plasmons in Periodic Arrays of Epitaxial Graphene Nanoribbons
Arvind Singh, Hynek Němec, Jan Kunc +1
Dynamics of plasmons in nanoribbons of (hydrogen intercalated) quasi-free-standing single layer graphene is studied by terahertz spectroscopy both in the steady state and upon phot…
Ultrafast terahertz conductivity in epitaxial graphene nanoribbons: an interplay between photoexcited and secondary hot carriers
Arvind Singh, Hynek Němec, Jan Kunc +1
Optical pump-terahertz probe spectroscopy has been used to investigate ultrafast photo-induced charge carrier transport in 3.4 m wide graphene ribbons upon scaling the optical p…
A frustrated antipolar phase analogous to classical spin liquids
G. Bastien, D. Repček, A. Eliáš +17
The study of magnetic frustration in classical spin systems was motivated by the prediction and discovery of classical spin liquid states. These uncommon magnetic phases are charac…
Undulations of smectic A layers in achiral liquid crystals manifested as stripe textures
Natalia Podoliak, Peter Salamon, Lubor Lejček +2
Self-assembly of organic molecules represents a fascinating playground to create various liquid crystalline (LC) nanostructures. In this work, we study layer undulations on microme…
Far-infrared electrodynamics of thin superconducting NbN film in magnetic field
M. Šindler, R. Tesař, J. Koláček +6
We studied a thin superconducting NbN film in magnetic fields up to 8 T above the zero- temperature limit by means of time-domain terahertz and scanning tunneling spectroscopies in…
THz and infrared studies of multiferroic hexagonal Y_(1-x)Eu_xMnO_3 (x=0 - 0.2) ceramics
V. Goian, S. Kamba, C. Kadlec +5
We report an investigation of hexagonal Y_(1-x)Eu_xMnO_3 ceramics with x=0, 0.1 and 0.2 using infrared and THz spectroscopies in the temperature range between 5 and 900 K. The temp…