Abstract
We have used optically excited ultrashort electrical pulses to measure the magnetoplasmon resonance of a two-dimensional electron gas formed in an AlGaAs/GaAs heterostructure at frequencies up to 200 GHz. This is accomplished by incorporating the sample into a guided wave probe operating in a pumped 3He system. We are able to detect the resonance by launching a stimulus pulse in the guide, and monitoring the system response in a time-resolved pump-probe arrangement. Data obtained from measurements yield resonant frequencies that agree with the magnetoplasmon dispersion relation.
Original language | English (US) |
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Article number | 041402 |
Pages (from-to) | 414021-414023 |
Number of pages | 3 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 66 |
Issue number | 4 |
State | Published - Jul 15 2002 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics