Langbein, Wolfgang Werner  ORCID: https://orcid.org/0000-0001-9786-1023, Patton, B. and Woggon, U.
2005.
Coherent Control and Polarization Readout of Individual Excitonic States.
Physical Review Letters (PRL)
95
, 266401.
10.1103/PhysRevLett.95.266401
|
Preview |
PDF
Download (1MB) | Preview |
Abstract
We present measurements and simulations of coherent control and readout of the polarization in individual exciton states. The readout is accomplished by transient four-wave mixing detected by heterodyne spectral interferometry. We observe Rabi oscillations in the polarization, which show half the period of the Rabi oscillations in the population. A decrease of the oscillation amplitude with pulse area is observed, which is not accompanied by a change in the dephasing time. This suggests the transfer of the excitation to other states as the origin of the Rabi-oscillation damping. Detuning of the excitation enables the control of the polarization in phase and amplitude and is in qualitative agreement with simulations for a two-level system. Additionally, simultaneous Rabi flopping of several spatially and energetically close exciton states is demonstrated.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Physics and Astronomy |
| Publisher: | American Physical Society |
| ISSN: | 0031-9007 |
| Last Modified: | 06 May 2023 04:30 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/1566 |
Citation Data
Cited 71 times in Scopus. View in Scopus. Powered By Scopus® Data
Actions (repository staff only)
 |
Edit Item |
Dimensions
Dimensions