Geometric dependence of enhanced terahertz detection by plasma oscillations in nanoscale unipolar diodes

K. Y. Xu; S. W. Lin; X. F. Lu; G. Wang; A. M. Song

doi:10.1063/1.3295532

Geometric dependence of enhanced terahertz detection by plasma oscillations in nanoscale unipolar diodes

K. Y. Xu, S. W. Lin, X. F. Lu, G. Wang, A. M. Song

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Using a two-dimensional ensemble Monte Carlo method, we have studied the terahertz responses of two nanoscale unipolar diodes. One is with a geometric asymmetry and the other is geometrically symmetric but with a potential asymmetry. We find that the rectified current of the one with a geometric asymmetry has a non-monotonic frequency dependence with a pronounced peak occurring just below the cutoff frequency showing enhanced detection by plasma oscillations, while that of the other has a trivial feature like traditional detectors. The different behaviors of plasma oscillations in the two diodes are also discussed. © 2009 American Institute of Physics.

Original language	English
Title of host publication	AIP Conference Proceedings\|AIP Conf. Proc.
Publisher	American Institute of Physics
Pages	511-512
Number of pages	1
Volume	1199
ISBN (Print)	9780735407367
DOIs	https://doi.org/10.1063/1.3295532
Publication status	Published - 2009
Event	29th International Conference on Physics of Semiconductors, ICPS 29 - Rio de Janeiro Duration: 1 Jul 2009 → …

Conference

Conference	29th International Conference on Physics of Semiconductors, ICPS 29
City	Rio de Janeiro
Period	1/07/09 → …

Keywords

Asymmetry
Monte Carlo
Nanoscale
Plasma
Terahertz

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10.1063/1.3295532

Cite this

@inproceedings{12aad0e351054ae6bfb1d2874ac1cdc5,

title = "Geometric dependence of enhanced terahertz detection by plasma oscillations in nanoscale unipolar diodes",

abstract = "Using a two-dimensional ensemble Monte Carlo method, we have studied the terahertz responses of two nanoscale unipolar diodes. One is with a geometric asymmetry and the other is geometrically symmetric but with a potential asymmetry. We find that the rectified current of the one with a geometric asymmetry has a non-monotonic frequency dependence with a pronounced peak occurring just below the cutoff frequency showing enhanced detection by plasma oscillations, while that of the other has a trivial feature like traditional detectors. The different behaviors of plasma oscillations in the two diodes are also discussed. {\textcopyright} 2009 American Institute of Physics.",

keywords = "Asymmetry, Monte Carlo, Nanoscale, Plasma, Terahertz",

author = "Xu, {K. Y.} and Lin, {S. W.} and Lu, {X. F.} and G. Wang and Song, {A. M.}",

year = "2009",

doi = "10.1063/1.3295532",

language = "English",

isbn = "9780735407367",

volume = "1199",

pages = "511--512",

booktitle = "AIP Conference Proceedings|AIP Conf. Proc.",

publisher = "American Institute of Physics",

address = "United States",

note = "29th International Conference on Physics of Semiconductors, ICPS 29 ; Conference date: 01-07-2009",

}

Xu, KY, Lin, SW, Lu, XF, Wang, G & Song, AM 2009, Geometric dependence of enhanced terahertz detection by plasma oscillations in nanoscale unipolar diodes. in AIP Conference Proceedings|AIP Conf. Proc.. vol. 1199, American Institute of Physics, pp. 511-512, 29th International Conference on Physics of Semiconductors, ICPS 29, Rio de Janeiro, 1/07/09. https://doi.org/10.1063/1.3295532

TY - GEN

T1 - Geometric dependence of enhanced terahertz detection by plasma oscillations in nanoscale unipolar diodes

AU - Xu, K. Y.

AU - Lin, S. W.

AU - Lu, X. F.

AU - Wang, G.

AU - Song, A. M.

PY - 2009

Y1 - 2009

N2 - Using a two-dimensional ensemble Monte Carlo method, we have studied the terahertz responses of two nanoscale unipolar diodes. One is with a geometric asymmetry and the other is geometrically symmetric but with a potential asymmetry. We find that the rectified current of the one with a geometric asymmetry has a non-monotonic frequency dependence with a pronounced peak occurring just below the cutoff frequency showing enhanced detection by plasma oscillations, while that of the other has a trivial feature like traditional detectors. The different behaviors of plasma oscillations in the two diodes are also discussed. © 2009 American Institute of Physics.

AB - Using a two-dimensional ensemble Monte Carlo method, we have studied the terahertz responses of two nanoscale unipolar diodes. One is with a geometric asymmetry and the other is geometrically symmetric but with a potential asymmetry. We find that the rectified current of the one with a geometric asymmetry has a non-monotonic frequency dependence with a pronounced peak occurring just below the cutoff frequency showing enhanced detection by plasma oscillations, while that of the other has a trivial feature like traditional detectors. The different behaviors of plasma oscillations in the two diodes are also discussed. © 2009 American Institute of Physics.

KW - Asymmetry

KW - Monte Carlo

KW - Nanoscale

KW - Plasma

KW - Terahertz

U2 - 10.1063/1.3295532

DO - 10.1063/1.3295532

M3 - Conference contribution

SN - 9780735407367

VL - 1199

SP - 511

EP - 512

BT - AIP Conference Proceedings|AIP Conf. Proc.

PB - American Institute of Physics

T2 - 29th International Conference on Physics of Semiconductors, ICPS 29

Y2 - 1 July 2009

ER -

Geometric dependence of enhanced terahertz detection by plasma oscillations in nanoscale unipolar diodes

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