Plasma oscillations of the two-dimensional electron gas in the field-effect transistor with a cylindrical gate electrode

Arsenin, Aleksey V.; Gladun, A. D.; Leiman, V. G.; Semenenko, Vyacheslav; Ryzhii, V.

doi:10.1134/s1064226910110112

Cited by 7 publications

(5 citation statements)

References 7 publications

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“…To quantify the red shift of the plasmons, we can use a quasistatic approximation, 34 which is applicable when the wavelength of the light in the surrounding media is much larger than the wavelength of the plasmon. The plasmon dispersion in GNR becomes particularly simple:…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…To quantify the red shift of the plasmons, we can use a quasistatic approximation, which is applicable when the wavelength of the light in the surrounding media is much larger than the wavelength of the plasmon. The plasmon dispersion in GNR becomes particularly simple: where ω is the plasmon frequency, λ ω is the graphene conductivity, which depends on the doping level, Λ( r ) is a dimensionless parameter, which depends on the geometry only, q = π/ W is a characteristic wavevector, and κ = (ε 0 + ε 1 )/2 is an average dielectric constant of the surrounding media, see Figure a.…”

Section: Resultsmentioning

confidence: 99%

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Plasmon–Plasmon Interactions and Radiative Damping of Graphene Plasmons

et al. 2018

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Understanding and controlling collective oscillations of electrons in graphene have enabled new classes of devices for deep subwavelength metamaterials, extraordinarily strong light−matter interactions, and nano-optoelectronic switches. Here, we demonstrate both theoretically and experimentally that the plasmon−plasmon and plasmon− radiation interactions modify strongly the plasmon resonance energy, radiative damping, and oscillator strength in graphene nanoribbon arrays. As the graphene filling factor approaches one, plasmon resonance energy becomes zero. And even for the moderate filling factors of about 50%, plasmon radiative lifetime reduces to a ps time scale. We find scaling of plasmons with respect to the graphene doping level and filling factor, which both control the strength of the radiative and long-range Coulomb interactions. The surprisingly large plasmon energy shift and radiative damping would significantly affect graphene-based plasmonic device performance.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Plasmon–Plasmon Interactions and Radiative Damping of Graphene Plasmons

et al. 2018

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“…We can average the force acting on the nanotubes over rapidly oscillating components: (13) The motion of the nanotubes in the detector will be considered in the model of concentrated parameters. In this model, the nanotubes are linear mechanical oscillators to which characteristic mass M and charac teristic stiffness K are juxtaposed (Fig.…”

Section: Averaged Ponderomotive Forcesmentioning

confidence: 99%

“…Subsequently, the resonant properties of the 2D electron gas were used for the development of the con cept of terahertz electromagnetic radiation detectors based on a field effect transistor with a movable gate [9][10][11][12][13]. In the general case, effective detection in such devices is based on the fact that the action of external amplitude modulation radiation leads to resonance of plasma oscillations in the channel.…”

Section: Introductionmentioning

confidence: 99%

Carbon nanotube based resonant detector of modulated terahertz radiation

et al. 2012

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A system of two freely suspended single walled carbon nanotubes in the form of a segment of a transmission line is considered. Its electrodynamic description is based on the Tomonaga-Luttinger liquid model. The system under investigation is a plasmon resonator with a resonance frequency from the terahertz range, which serves as a high Q mechanical oscillator coupled with the plasmon resonator by a nonlinear ponderomotive force. As a possible application of this system, a new model of resonant detector is proposed. The output parameters of such a nanosized detector are obtained.

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“…Since FETs with a mechanically floating gate can exhibit not only mechanical resonances but also resonances at the frequency of plasma oscillations (associated with the electrons in the FET channel [10][11][12] ), the creation of detectors of modulated terahertz (THz) radiation is feasible. 7,9,[13][14][15] The operation of such detectors is associated with the resonant excitation of the plasma oscillations in the FET channel under the influence of the amplitude-modulated radiation (with the carrier frequency close or equal to the plasma frequency, i.e., the frequency in the THz range, and with the modulation frequency commensurable with the frequency of the floating gate mechanical oscillations). The detection mechanism is associated with the ponderomotive force proportional to the square of the voltage between the gate and the channel.…”

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confidence: 99%

Detection of Modulated Terahertz Radiation Using Combined Plasma and Mechanical Resonances in Double-Carbon-Nanotube Device

Stebunov

Leiman

Arsenin

et al. 2011

Appl. Phys. Express

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We propose a resonant detector of terahertz radiation modulated by megahertz or gigahertz signals. The detector is based on mechanically floating carbon nanotubes (CNTs), suspended over an insulator. The device operation is associated with the excitation of both plasma and mechanical oscillations in CNTs resulting in an ac displacement current between them. This current plays the role of the detector output signal. Using the proposed device model, we find that the frequency dependence of the detector responsivity exhibits a sharp peak at the combined plasma-mechanical resonance and estimate its maximum value.

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Plasma oscillations of the two-dimensional electron gas in the field-effect transistor with a cylindrical gate electrode

Cited by 7 publications

References 7 publications

Plasmon–Plasmon Interactions and Radiative Damping of Graphene Plasmons

Plasmon–Plasmon Interactions and Radiative Damping of Graphene Plasmons

Carbon nanotube based resonant detector of modulated terahertz radiation

Detection of Modulated Terahertz Radiation Using Combined Plasma and Mechanical Resonances in Double-Carbon-Nanotube Device

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