160 citations · 2.7k across the 94 of their papers we have counts for
8 papers · 1 filter
Real-space-transfer mechanism of negative differential conductivity in gated graphene-phosphorene hybrid structures: Phenomenological heating model
V. Ryzhii, M. Ryzhii, D. Svintsov +6
We analyze the nonlinear carrier transport in the gated graphene-phosphorene (G-P) hybrid structures - the G-P field-effect transistors (G-P-FETs) using a phenomenological model. T…
Interband infrared photodetectors based on HgTe--CdHgTe quantum-well heterostructure
V. Ya. Aleshkin, A. A. Dubinov, S. V. Morozov +5
We calculate the characteristics of interband HgTe-CdHgTe quantum-well infrared photodetectors (QWIPs). Due to a small probability of the electron capture into the QWs, the interba…
Interplay of intra- and interband absorption in a disordered graphene
F. T. Vasko, V. V. Mitin, V. Ryzhii +1
The absorption of heavily doped graphene in the terahertz (THz) and mid-infrared (MIR) spectral regions is considered taking into account both the elastic scattering due to finite-…
Amplified Stimulated Terahertz Emission at Room temperature from Optically Pumped Graphene
Stephane Boubanga Tombet, Silvia Chan, Taiichi Otsuji +2
Room temperature Terahertz stimulated emission and population inversion in optically pumped graphene is reported. We experimentally observe fast relaxation and relatively slow reco…
Observation of Amplified Stimulated Terahertz Emission from Optically Pumped Epitaxial Graphene Heterostructures
Taiichi Otsuji, Hiromi Karasawa, Tsuneyoshi Komori +5
We experimentally observe the fast relaxation and relatively slow recombination dynamics of photogenerated electrons/holes in an epitaxial graphene-on-Si heterostructure under pump…
Nonequilibrium carriers in an intrinsic graphene under interband photoexcitation
A. Satou, F. T. Vasko, V. Ryzhii
We study nonequilibrium carriers (electrons and holes) in an intrinsic graphene at low temperatures under far- and mid-infrared (IR) radiation in a wide range of its intensities. T…
Photoconductivity of an intrinsic graphen
F. T. Vasko V. Ryzhii
We examine the photoconductivity of an intrinsic graphene associated with far- and mid-infrared irradiation at low temperatures. The model under consideration accounts for the exci…
Voltage and temperature dependencies of conductivity in gated graphene
F. T. Vasko, V. Ryzhii
The resistivity of gated graphene is studied taking into account electron and hole scattering by short- and long-range structural imperfections the characteristics of disorder were…