Detection, mixing, and frequency multiplication of terahertz radiation by two-dimensional electronic fluid

Dyakonov, Michel; Shur, M. S.

doi:10.1109/16.485650

Cited by 960 publications

(766 citation statements)

References 7 publications

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“…The frequencies of 2D plasmons in semiconductor heterostructures conveniently fall in the THz region and can be easily tuned by changing the 2D electron density through an applied field effect. These features make 2D plasmons an excellent candidate to be used for frequency tunable THz detection [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. The predicted instabilities of 2D plasma waves interacting with incident THz EM radiation also provide opportunities for designing THz sources [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Transmission line theory of collective plasma excitations in periodic two-dimensional electron systems: Finite plasmonic crystals and Tamm states

Aǐzin

Dyer

2012

Phys. Rev. B

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We present a comprehensive theory of the one-dimensional plasmonic crystal formed in the grating gated two-dimensional electron gas (2DEG) in semiconductor heterostructures. To describe collective plasma excitations in the 2DEG, we develop a generalized transmission line theoretical formalism consistent with the plasma hydrodynamic model. We then apply this formalism to analyze the plasmonic spectra of 2DEG systems with step-like periodic changes of electron density and/or gate screening. We show that in a periodically modulated 2DEG, a plasmonic crystal is formed and derive closed-form analytical expressions describing its energy band spectrum for both infinite and finite size crystals. Our results demonstrate a non-monotonic dependence of the plasmonic band gap width on the electron density modulation. At so-called transparency points where the plasmon propagates through the periodic 2DEG in a resonant manner, the plasmonic band gaps vanish. In semi-infinite plasmonic crystals, we demonstrate the formation of plasmonic Tamm states and analytically derive their energy dispersion and spatial localization. Finally, we present detailed numerical analysis of the plasmonic band structure of a finite four-period plasmonic crystal terminated either by an Ohmic contact or by an infinite barrier on each side. We trace the evolution of the plasmonic band spectrum, including the Tamm states, with changing electron density modulation and analyze the boundary conditions necessary for formation of the Tamm states. We also analyze interaction between the Tamm states formed at the opposite edges of the short length plasmonic crystal. The validity of our theoretical approach was confirmed in experimental studies of plasmonic crystals in short modulated plasmonic cavities (G. C. Dyer et. al., Phys. Rev. Lett. 109, 126803 (2012)) which demonstrated excellent quantitative agreement between theory and experiment. * gregory.aizin@kbcc.cuny.edu † gcdyer@sandia.gov 2

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Section: Introductionmentioning

confidence: 99%

Transmission line theory of collective plasma excitations in periodic two-dimensional electron systems: Finite plasmonic crystals and Tamm states

Aǐzin

Dyer

2012

Phys. Rev. B

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“…2. The possibility of the detection is due to nonlinear properties of the transistor, which lead to the rectification of an ac current induced by the incoming radiation.…”

Section: Detection Of Thz Radiation By Fetmentioning

confidence: 99%

“…This will, in turn, produce the emission of electromagnetic radiation at the plasma wave frequency. Later, it was shown [2] that the nonlinear properties of the 2D plasma in the transistor channel can be used for detection and mixing of THz radiation. The resonant case of high electron mobility, when plasma oscillation modes are excited in the channel, and the non-resonant case of low mobility, where plasma oscillations are overdamped were analysed.…”

Section: Introductionmentioning

confidence: 99%

Generation and detection of Terahertz radiation by field effect transistors

Dyakonov

2010

Comptes Rendus. Physique

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This is an overview of the main physical ideas for application of field effect transistors for generation and detection of TeraHertz radiation. Resonant frequencies of the two-dimensional plasma oscillations in FETs increase with the reduction of the channel dimensions and reach the THz range for sub-micron gate lengths. When the mobility is high enough, the dynamics of a short channel FET at THz frequencies is dominated by plasma waves. This may result, on the one hand, in a spontaneous generation of plasma waves by a dc current and on the other hand, in a resonant response to the incoming radiation. In the opposite case, when plasma oscillations are overdamped, the FET can operate as an efficient broadband THz detector.

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“…The prediction of plasma wave-resonances [1] in sub-micrometer-long channel field-effect transistors, (FETs) triggered a strong interest in applied aspects of plasmonic effects, which promise the extension of otherwise standard device operation beyond the conventional cut-off frequency limits. The plasmons, relating to a wave-like propagation of charge carriers, can manifest already at microwaves, yet they become increasingly pronounced in the terahertz (THz) frequency range.…”

mentioning

confidence: 99%

Hydrodynamic modelling of terahertz rectification in AlGaN/GaN high electron mobility transistors

Vyšniauskas

Lisauskas

Bauer

et al. 2017

J. Phys.: Conf. Ser.

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Detection, mixing, and frequency multiplication of terahertz radiation by two-dimensional electronic fluid

Cited by 960 publications

References 7 publications

Transmission line theory of collective plasma excitations in periodic two-dimensional electron systems: Finite plasmonic crystals and Tamm states

Transmission line theory of collective plasma excitations in periodic two-dimensional electron systems: Finite plasmonic crystals and Tamm states

Generation and detection of Terahertz radiation by field effect transistors

Hydrodynamic modelling of terahertz rectification in AlGaN/GaN high electron mobility transistors

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