| Autor: |
Moody, G., Singh, R., Li, H., Akimov, I. A., Bayer, M., Reuter, D., Wieck, A. D., Cundiff, S. T. |
| Rok vydání: |
2012 |
| Předmět: |
|
| Zdroj: |
Phys. Rev. B 87, 045313 (2013) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevB.87.045313 |
| Popis: |
Exciton, trion and biexciton dephasing rates are measured within the inhomogeneous distribution of an InAs quantum dot (QD) ensemble using two-dimensional Fourier-transform spectroscopy. The dephasing rate of each excitonic state is similar for all QDs in the ensemble and the rates are independent of excitation density. An additional spectral feature -- too weak to be observed in the time-integrated four-wave mixing signal -- appears at high excitation density and is attributed to the $\chi^{\textrm{(5)}}$ biexcitonic nonlinear response. |
| Databáze: |
arXiv |
| Externí odkaz: |
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