Imaging of magnetoplasmons excited in a two-dimensional electron gas

I. Baskin; B. M. Ashkinadze; E. Cohen; L. N. Pfeiffer

doi:10.1103/PhysRevB.84.041305

Imaging of magnetoplasmons excited in a two-dimensional electron gas

I. Baskin, B. M. Ashkinadze, E. Cohen, L. N. Pfeiffer

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

We report on the direct observation of magnetoplasmon modes that are excited in a laterally confined two-dimensional electron gas (2DEG) by microwave radiation. The magnetoplasmon polaritons were imaged using spatially resolved photoluminescence (PL) spectroscopy of GaAs heterostructures, and their dependence on an external magnetic field and 2DEG density were studied. The PL pattern formation originates in the PL spectrum modulation by electrons that are heated by the local electric field of the magnetoplasmons. We revealed remarkable spatial oscillations of the microwave electric field in the samples containing a high mobility 2DEG.

Original language	English (US)
Article number	041305
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	84
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevB.84.041305
State	Published - Jul 20 2011
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.84.041305

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title = "Imaging of magnetoplasmons excited in a two-dimensional electron gas",

abstract = "We report on the direct observation of magnetoplasmon modes that are excited in a laterally confined two-dimensional electron gas (2DEG) by microwave radiation. The magnetoplasmon polaritons were imaged using spatially resolved photoluminescence (PL) spectroscopy of GaAs heterostructures, and their dependence on an external magnetic field and 2DEG density were studied. The PL pattern formation originates in the PL spectrum modulation by electrons that are heated by the local electric field of the magnetoplasmons. We revealed remarkable spatial oscillations of the microwave electric field in the samples containing a high mobility 2DEG.",

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AU - Baskin, I.

AU - Ashkinadze, B. M.

AU - Cohen, E.

AU - Pfeiffer, L. N.

PY - 2011/7/20

Y1 - 2011/7/20

N2 - We report on the direct observation of magnetoplasmon modes that are excited in a laterally confined two-dimensional electron gas (2DEG) by microwave radiation. The magnetoplasmon polaritons were imaged using spatially resolved photoluminescence (PL) spectroscopy of GaAs heterostructures, and their dependence on an external magnetic field and 2DEG density were studied. The PL pattern formation originates in the PL spectrum modulation by electrons that are heated by the local electric field of the magnetoplasmons. We revealed remarkable spatial oscillations of the microwave electric field in the samples containing a high mobility 2DEG.

AB - We report on the direct observation of magnetoplasmon modes that are excited in a laterally confined two-dimensional electron gas (2DEG) by microwave radiation. The magnetoplasmon polaritons were imaged using spatially resolved photoluminescence (PL) spectroscopy of GaAs heterostructures, and their dependence on an external magnetic field and 2DEG density were studied. The PL pattern formation originates in the PL spectrum modulation by electrons that are heated by the local electric field of the magnetoplasmons. We revealed remarkable spatial oscillations of the microwave electric field in the samples containing a high mobility 2DEG.

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JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 4

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ER -

Imaging of magnetoplasmons excited in a two-dimensional electron gas

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