Non-linear doppler shift of the plasmon resonance in a grating-coupled drifting 2 deg

H. P. Hughes

doi:10.1117/12.2298592

30 August 1993 Non-linear doppler shift of the plasmon resonance in a grating-coupled drifting 2 deg

H. P. Hughes

Proceedings Volume 2104, 18th International Conference on Infrared and Millimeter Waves; 21044G (1993) https://doi.org/10.1117/12.2298592
Event: 18th International Conference on Infrared and Millimeter Waves, 1993, Colchester, United Kingdom

Abstract

Experimental and computational investigations of the plasmon resonances of a two dimensionalelectron gas (2DEG) in the far-infrared have been performed. The object was to study the effects oflaterally drifting the 2DEG, that is giving the electrons a net velocity in the plane of the charge sheet. Thesimplest description of the effect of drifting the 2DEG is in terms of a Doppler shift in the plasmonfrequency . For the case of the plasmon wavevector kx and the drift velocity vd being parallel, there aretwo plasmon modes (travelling up and down stream with respect to the drift) and their Doppler shiftedplasmon frequencies are ( coo being the plasmon frequency in a stationary 2DEG):

Citation Download Citation

H. P. Hughes "Non-linear doppler shift of the plasmon resonance in a grating-coupled drifting 2 deg", Proc. SPIE 2104, 18th International Conference on Infrared and Millimeter Waves, 21044G (30 August 1993); https://doi.org/10.1117/12.2298592

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