TITLE

Broadening of the plasmon resonance due to plasmon-plasmon intermode scattering in terahertz high-electron-mobility transistors

AUTHOR(S)
Popov, V. V.; Polischuk, O. V.; Knap, W.; El Fatimy, A.
PUB. DATE
December 2008
SOURCE
Applied Physics Letters;12/29/2008, Vol. 93 Issue 26, p263503
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We calculate the terahertz absorption spectrum of the high-electron-mobility transistor with a short gate and long ungated channel regions and show that the main contribution to the linewidth of the gated plasmon resonance can be attributed to the plasmon-plasmon intermode scattering. The results allow interpreting recent experimental results on resonant terahertz detection by InGaAs nanotransistors. The physics of the plasmon-plasmon intermode scattering is discussed and efficiency of this process is quantitatively compared to the other possible plasmon damping mechanisms.
ACCESSION #
36054080

 

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