2010
DOI: 10.1063/1.3484041
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Analysis of terahertz plasma resonances in structures with two-dimensional electron systems periodically modulated by interdigitated gate

Abstract: Simple analytical model is developed to evaluate spatial distribution of sheet electron density in the channel of the high-electron mobility transistor (HEMT)-like structure periodically modulated by the bias voltages applied to interdigitated gate. Resonant frequencies of plasma oscillations excited in the two-dimensional electron gas (2DEG) channel of such structures are evaluated in the ideal and realistic situations. The realistic model accounts for the ungated regions which due to nonideality of gate cont… Show more

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Cited by 6 publications
(1 citation statement)
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“…In recent years the achieved responsivity and noise equivalent power (NEP) of such detectors have approached the values meeting the demands of practical applications [2][3][4][5][6][7]. Main designs of plasma wave THz detectors include single transistors with the antenna [3,4,7], single transistors with grating/interdigitated gate [2,8,9] and several transistors connected by external wires or integrated on a chip [5,6]. Lateral dimensions of most highly sensitive detectors are much smaller than the half-wavelength of THz radiation [5,6] and in an experiment one usually deals with a single detector surrounded by wiring.…”
Section: Introductionmentioning
confidence: 99%
“…In recent years the achieved responsivity and noise equivalent power (NEP) of such detectors have approached the values meeting the demands of practical applications [2][3][4][5][6][7]. Main designs of plasma wave THz detectors include single transistors with the antenna [3,4,7], single transistors with grating/interdigitated gate [2,8,9] and several transistors connected by external wires or integrated on a chip [5,6]. Lateral dimensions of most highly sensitive detectors are much smaller than the half-wavelength of THz radiation [5,6] and in an experiment one usually deals with a single detector surrounded by wiring.…”
Section: Introductionmentioning
confidence: 99%