164 citations · 2.3k across the 52 of their papers we have counts for
24 papers · 1 filter
Coulomb-induced synchronization of intersubband coherences in highly doped quantum wells and the formation of giant collective resonances
Mikhail Tokman, Maria Erukhimova, Yongrui Wang +1
Many-body Coulomb interactions drastically modify the optical response of highly doped semiconductor quantum wells leading to a merger of all intersubband transition resonances int…
Relaxation operator for quasiparticles in a solid
Maria Erukhimova, Yongrui Wang, Mikhail Tokman +1
Popular models of the phenomenological relaxation operators that are widely used in the master equation formalism for open condensed-matter systems have significant flaws ranging f…
Four-wave mixing in Weyl semimetals
Sultan Almutairi, Qianfan Chen, Mikhail Tokman +1
Weyl semimetals (WSMs) have unusual optical response originated from unique topological properties of their bulk and surface electron states. Their third-order optical nonlinearity…
Inverse Faraday effect in graphene and Weyl semimetals
I. D. Tokman, Qianfan Chen, I. A. Shereshevsky +4
We report systematic theoretical studies of the inverse Faraday effect in materials with massless Dirac fermions, both in two dimensions such as graphene and surface states in topo…
Extreme anisotropy and gyrotropy of surface polaritons in Weyl semimetals
Qianfan Chen, Maria Erukhimova, Mikhail Tokman +1
Weyl semimetals possess unique electrodynamic properties due to a combination of strongly anisotropic and gyrotropic bulk conductivity, surface conductivity, and surface dipole lay…
Second harmonic generation in graphene dressed by a strong terahertz field
Mikhail Tokman, Sergei B. Bodrov, Yuri A. Sergeev +5
We observe enhanced second-harmonic generation in monolayer graphene in the presence of an ultra-strong terahertz field pulse with a peak amplitude of 250 kV/cm. This is a strongly…
Optical properties and electromagnetic modes of Weyl semimetals
Qianfan Chen, A. Ryan Kutayiah, Ivan Oladyshkin +2
We present systematic theoretical studies of both bulk and surface electromagnetic eigenmodes, or polaritons, in Weyl semimetals. We derive the tensors of bulk and surface conducti…
Difference frequency generation of surface plasmon-polaritons in Landau quantized graphene
A. Ryan Kutayiah, Mikhail Tokman, Yongrui Wang +1
We develop a rigorous quantum-mechanical theory of the nonlinear optical process of difference frequency generation of surface plasmon-polaritons in Landau-quantized graphene. Alth…
Enhanced third-order optical nonlinearity driven by surface-plasmon field gradients
Vasily Kravtsov, Sultan AlMutairi, Ronald Ulbricht +3
Achieving efficient nonlinear optical frequency conversion in small volumes is key for future on-chip photonic devices that would provide a higher-speed alternative to modern elect…
Magneto-polaritons in Weyl semimetals in a strong magnetic field
Zhongqu Long, Yongrui Wang, Maria Erukhimova +2
Exotic topological and transport properties of Weyl semimetals generated a lot of excitement in the condensed matter community. Here we show that Weyl semimetals in a strong magnet…
Observation of Diode Behavior and Gate Voltage Control of Hybrid Plasmon-Phonon Polaritons in Graphene-Hexagonal Boron Nitride Heterostructures
Francisco C. B. Maia, Brian T. O'Callahan, Alisson R. Cadore +8
Light-matter interaction in two-dimension photonic materials allows for confinement and control of free-space radiation on sub-wavelength scales. Most notably, the van der Waals he…
Second-order nonlinear optical response of graphene
Yongrui Wang, Mikhail Tokman, Alexey Belyanin
Although massless Dirac fermions in graphene constitute a centrosymmetric medium for in-plane excitations, their second-order nonlinear optical response is nonzero if the effects o…
Valley entanglement of excitons in monolayers of transition-metal dichalcogenides
Mikhail Tokman, Yongrui Wang, Alexey Belyanin
We show that excitons and free carriers in K and K' valleys of transition metal dichalcogenide monolayers can be entangled with respect to their valley degree of freedom by absorbi…
Continuous wave lasing between Landau levels in graphene
Yongrui Wang, Mikhail Tokman, Alexey Belyanin
We predict the general feasibility and demonstrate the specific design of the THz laser operating between Landau levels in graphene placed on a polar substrate in a magnetic field…
Strong magneto-optical effects due to surface states in three-dimensional topological insulators
Xianghan Yao, Mikhail Tokman, Alexey Belyanin
We show that a thin film of a three-dimensional topological insulator such as BiSe or BiTe can exhibit strong linear and nonlinear magneto-optical effects in a tran…
Superradiant Decay of Cyclotron Resonance of Two-Dimensional Electron Gases
Qi Zhang, Takashi Arikawa, Eiji Kato +9
We report on the observation of collective radiative decay, or superradiance, of cyclotron resonance (CR) in high-mobility two-dimensional electron gases in GaAs quantum wells usin…
Fermi-Edge Superfluorescence from a Quantum-Degenerate Electron-Hole Gas
J. -H. Kim, G. T. Noe, S. A. McGill +4
We report on the observation of spontaneous bursts of coherent radiation from a quantum-degenerate gas of nonequilibrium electron-hole pairs in semiconductor quantum wells. Unlike…
Efficient nonlinear generation of THz plasmons in graphene and topological insulators
Xianghan Yao, Mikhail Tokman, Alexey Belyanin
Surface plasmons in graphene may provide an attractive alternative to noble-metal plasmons due to their tighter confinement, peculiar dispersion, and longer propagation distance. W…
Generation of entangled photons in graphene in a strong magnetic field
Mikhail Tokman, Xianghan Yao, Alexey Belyanin
Entangled photon states attract tremendous interest as the most vivid manifestation of nonlocality of quantum mechanics and also for emerging applications in quantum information. H…
Nonlinear optics of graphene in a strong magnetic field
Xianghan Yao, Alexey Belyanin
Graphene placed in a magnetic field possesses an extremely high mid/far-infrared optical nonlinearity originating from its unusual band structure and selection rules for the optica…
Giant Superfluorescent Bursts from a Semiconductor Magnetoplasma
G. T. Noe, J. -H. Kim, J. Lee +6
Currently, considerable resurgent interest exists in the concept of superradiance (SR), i.e., accelerated relaxation of excited dipoles due to cooperative spontaneous emission, fir…
Real-space Hamiltonian method for low-dimensional semiconductor heterostructures
Yong-Hee Cho, Alexey Belyanin
We present a new method for calculating electronic states in low-dimensional semiconductor heterostructures, which is based on the real-space Hamiltonian in the envelope function a…
Renormalized Energies of Superfluorescent Bursts from an Electron-Hole Magneto-plasma with High Gain in InGaAs Quantum Wells
J. -H. Kim, J. Lee, G. T. Noe +6
We study light emission properties of a population-inverted 2D electron-hole plasma in a quantizing magnetic field. We observe a series of superfluorescent bursts, discrete both in…
Time-Integrated Evidence for Superfluorescence from Dense Electron-Hole Magneto-Plasmas in Semiconductor Quantum Wells
Y. D. Jho, X. Wang, J. Kono +5
Cooperative spontaneous recombination (superfluorescence) of electron-hole plasmas in semiconductors has been a challenge to observe due to ultrafast decoherence. We argue that sup…