Resonant detection of subterahertz and terahertz radiation by plasma waves in submicron field-effect transistors

Knap, W.; Deng, Yanqing; Rumyantsev, Sergey; Shur, M. S.

doi:10.1063/1.1525851

Cited by 274 publications

(160 citation statements)

References 10 publications

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“…Apart from the frequency multiplication, graphene devices could be used in plasmon-based voltage-controlled sources and detectors of THz radiation. The physics of such devices has long been discussed in the literature 50,51,52,53,54,55 and the main ideas of 2D plasmon-assisted detection and generation of radiation have been confirmed in a number of experiments on conventional 2D electron systems 56,57,58,59 . Graphene has that advantage that the Fermi velocity of electrons in it is much higher than in other semiconductor materials, and its plasma frequency is widely tunable and lies in the THz range 45,46 .…”

Section: Introductionmentioning

confidence: 99%

Nonlinear electromagnetic response of graphene: frequency multiplication and the self-consistent-field effects

Mikhaǐlov

Ziegler²

2008

J. Phys.: Condens. Matter

391

390

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Graphene is a recently discovered carbon based material with unique physical properties. This is a monolayer of graphite, and the two-dimensional electrons and holes in it are described by the effective Dirac equation with a vanishing effective mass. As a consequence, electromagnetic response of graphene is predicted to be strongly non-linear. We develop a quasi-classical kinetic theory of the non-linear electromagnetic response of graphene, taking into account the self-consistent-field effects. Response of the system to both harmonic and pulse excitation is considered. The frequency multiplication effect, resulting from the non-linearity of the electromagnetic response, is studied under realistic experimental conditions. The frequency up-conversion efficiency is analysed as a function of the applied electric field and parameters of the samples. Possible applications of graphene in terahertz electronics are discussed.

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Section: Introductionmentioning

confidence: 99%

Nonlinear electromagnetic response of graphene: frequency multiplication and the self-consistent-field effects

Mikhaǐlov

Ziegler²

2008

J. Phys.: Condens. Matter

391

390

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“…Two dimensional (2D) THz plasmons in silicon (Si) [4], III-V materials such as GaAs/AlGaAs [5] and GaN/AlGaN [6] heterostructures, and graphene [7,8] similarly are sub-wavelength compared to free-space electromagnetic waves, but have an additional degree of freedom due to the ability to control electron density, and thus the 2D plasma frequency, through a field effect. It is this latter capability that has generated interest in 2D plasmonic devices [9,10] such as THz detectors [11][12][13][14], mixers [15,16], emitters [17,18], and field enhancement structures [19].…”

mentioning

confidence: 99%

Inducing an Incipient Terahertz Finite Plasmonic Crystal in Coupled Two Dimensional Plasmonic Cavities

et al. 2012

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We measured a change in the current transport of an antenna-coupled, multi-gate, GaAs/AlGaAs field-effect transistor when terahertz electromagnetic waves irradiated the transistor and attribute the change to bolometric heating of the electrons in the two-dimensional electron channel. The observed terahertz absorption spectrum indicates coherence between plasmons excited under adjacent biased device gates. The experimental results agree quantitatively with a theoretical model we developed that is based on a generalized plasmonic transmission line formalism and describes an evolution of the plasmonic spectrum with increasing electron density modulation from homogeneous to the crystal limit. These results demonstrate an electronically induced and dynamically tunable plasmonic band structure.

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“…Finally there were two fit parameters only: ∆T e -the difference between temperatures of electrons and the lattice (4.2 K) and A -a scaling factor for the function (6). Results of both fitting procedures are shown in Fig.…”

Section: Amplitudementioning

confidence: 99%

Plasmonic terahertz detectors based on a high-electron mobility GaAs/AlGaAs heterostructure

Białek

Witowski

Орлита

et al. 2014

Journal of Applied Physics

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In order to characterize magnetic-field (B) tunable THz plasmonic detectors, spectroscopy experiments were carried out at liquid helium temperatures and high magnetic fields on devices fabricated on a high electron mobility GaAs/AlGaAs heterostructure. The samples were either gated (the gate of a meander shape) or ungated. Spectra of a photovoltage generated by THz radiation were obtained as a function of B at a fixed THz excitation from a THz laser or as a function of THz photon frequency at a fixed B with a Fourier spectrometer. In the first type of measurements, the wave vector of magnetoplasmons excited was defined by geometrical features of samples. It was also found that the magnetoplasmon spectrum depended on the gate geometry which gives an additional parameter to control plasma excitations in THz detectors. Fourier spectra showed a strong dependence of the cyclotron resonance amplitude on the conduction-band electron filling factor which was explained within a model of the electron gas heating with the THz radiation. The study allows to define both the advantages and limitations of plasmonic devices based on high-mobility GaAs/AlGaAs heterostructures for THz detection at low temperatures and high magnetic fields.

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Resonant detection of subterahertz and terahertz radiation by plasma waves in submicron field-effect transistors

Cited by 274 publications

References 10 publications

Nonlinear electromagnetic response of graphene: frequency multiplication and the self-consistent-field effects

Nonlinear electromagnetic response of graphene: frequency multiplication and the self-consistent-field effects

Inducing an Incipient Terahertz Finite Plasmonic Crystal in Coupled Two Dimensional Plasmonic Cavities

Plasmonic terahertz detectors based on a high-electron mobility GaAs/AlGaAs heterostructure

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