| Autor: |
Mapara, V., Stevens, C. E., Paul, J., Barua, A., Reno, J. L., McGill, S. A., Hilton, D. J., Karaiskaj, D. |
| Předmět: |
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| Zdroj: |
Journal of Chemical Physics; 11/28/2021, Vol. 155 Issue 20, p1-10, 10p |
| Abstrakt: |
We perform two-dimensional Fourier transform spectroscopy on magneto-excitons in GaAs at magnetic fields and observe Zeeman splitting of the excitons. The Zeeman components are clearly resolved as separate peaks due to the two-dimensional nature of the spectra, leading to a more accurate measurement of the Zeeman splitting and the Landé g factors. Quantum coherent coupling between Zeeman components is observed using polarization dependent one-quantum two-dimensional spectroscopy. We use two-quantum two-dimensional spectroscopy to investigate higher four-particle correlations at high magnetic fields and reveal the role of the Zeeman splitting on the two-quantum transitions. The experimental two-dimensional spectra are simulated using the optical Bloch equations, where many-body effects are included phenomenologically. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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