D McPeake et al 2004 Semicond. Sci. Technol. 19 S279 doi:10.1088/0268-1242/19/4/093
Detection of Rabi oscillations in a two-dimensional electron gas under ultrafast intersubband excitation
D McPeake, F T Vasko and E P O'Reilly
Show affiliationsWe investigate the coherent nonlinear response of a 2D electron gas under ultrafast mid-IR excitation. Laser-induced Rabi oscillations result in population redistribution between resonantly excited subband levels. We calculate temporal redistributions using non-Markovian balance equations, taking into account population relaxation and dephasing of the intersubband polarization. Detection schemes, based on terahertz emission of radiation from non-symmetric quantum wells, as well as a two-colour pump probe method, are discussed for signatures of intersubband Rabi oscillations.
- PACS
- Subjects
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Condensed matter: electrical, magnetic and optical
- Dates
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Issue 4 (April 2004)
Received 28 July 2003
Published 8 March 2004
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Detection of Rabi oscillations in a two-dimensional electron gas under ultrafast intersubband excitation
D McPeake et al 2004 Semicond. Sci. Technol. 19 S279
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