Optical spectroscopy of single trions

Tischler,; Bracker,; Gammon,

doi:10.1109/qels.2002.1031017

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Defect-related Exciton1

Introduction: Single Exciton Spectroscopy In Nanostructures1

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(2 citation statements)

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“…The most striking observations are the larger degeneracy and the large g-factor in the Voigt geometry. Most spectral lines in the spectra behave as expected if derived from band edge electrons and heavy holes [4]. Xs bound to shallow donor or acceptors are commonly observed in bulk GaAs [7] and in GaAs QWs [8].…”

Section: Defect-related Excitonmentioning

confidence: 63%

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Single Exciton Magneto-Photoluminescence in GaAs Quantum Wells

Tischler

Gammon

Bracker

2002

phys. stat. sol. (b)

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We present the fine structure and Zeeman splitting of excitons localized in narrow GaAs quantum wells by interface roughness. We report an anomalous exciton identified by its intriguing magnetooptical characteristics as a function of field strength and orientation. In the Voigt geometry, the anomalous exciton g-factors are 5 to 10 times larger than those for a normal exciton in this quantum dot system.

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Section: Defect-related Excitonmentioning

confidence: 63%

“…These excitonic states are strongly affected by the environment (extra charges, QD shape, interaction with nuclei, etc. [2][3][4][5][6]). These effects become evident as an external magnetic field (B-field) is varied in strength and orientation.…”

Section: Introduction: Single Exciton Spectroscopy In Nanostructuresmentioning

confidence: 99%