Microscopic measurement of photon echo formation in groups of individual excitonic transitions.
The third-order polarization emitted from groups of individual localized excitonic transitions after pulsed optical excitation is measured. We observe the evolution of the nonlinear response from the case of a free polarization decay for a single transition, to that of a photon echo for many transit...
| Main Authors: | , |
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| 格式: | Journal article |
| 語言: | English |
| 出版: |
2005
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| 總結: | The third-order polarization emitted from groups of individual localized excitonic transitions after pulsed optical excitation is measured. We observe the evolution of the nonlinear response from the case of a free polarization decay for a single transition, to that of a photon echo for many transitions. The echo is shown to arise from the mutual rephasing of the emission from individual transitions. |
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