212 citations · 228 across the 9 of their papers we have counts for
9 papers
Advantages of optical modulation in terahertz imaging for study of graphene layers
Rusnė Ivaškevičiūtė-Povilauskienė, Alesia Paddubskaya, Dalius Seliuta +7
It was demonstrated that optical modulation together with simultaneous terahertz (THz) imaging application enables an increase in contrast by an order of magnitude illustrating hen…
Observation of the Dissipative Parametric Gain in a GaAs/AlGaAs Superlattice
Vladislovas Čižas, Liudvikas Subačius, Natalia V. Alexeeva +5
Parametric generation of oscillations and waves is a paradigm, which is known to be realized in various physical systems. Unique properties of quantum superlattices allow to invest…
Laser structuring for control of coupling between THz light and phonon modes
X. W. Wang, G. Seniutinas, A. Balcytis +8
Modification of surface and volume of sapphire is shown to affect reflected and transmitted light at THz spectral range. Structural modifications were made using ultra-short 230 fs…
Influence of field effects on the performance of InGaAs-based terahertz radiation detectors
Linas Minkevičius, Vincas Tamošiūnas, Martynas Kojelis +6
A detailed electrical characterization of high-performance bow-tie InGaAs based terahertz detectors is presented along with simulation results. The local surface potential and tunn…
Field Effect Transistors for Terahertz Detection: Physics and First Imaging Applications
W. Knap, M. Dyakonov, D. Coquillat +11
Resonant frequencies of the two-dimensional plasma in FETs increase with the reduction of the channel dimensions and can reach the THz range for sub-micron gate lengths. Nonlinear…
Radiative Recombination Spectra of Heavily p-Type delta-Doped Gaas/Alas MQWs
J. Kundrotas, A. Cerskus, G. Valusis +4
We present a study of the photoluminescence (PL) properties of heavily Be delta-doped GaAs/AlAs multiple quantum wells measured at room and liquid nitrogen temperatures. Possible m…