Abstract
Resonantly-excited photoluminescence (PL) of excitonic molecules with femtosecond resolution reveals a surprising initial transient characterized by a finite rise and an extremely fast non-exponential decay. We show that this initial transient stems from coherent quantum evolution of relative momentum of two excitons in the molecule, in sharp contrast to radiative dynamics of excitons. The initial transient also reflects a type of quantum beats that differ from the usual quantum beats in transient optical measurements.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 807-811 |
| Number of pages | 5 |
| Journal | Solid State Communications |
| Volume | 98 |
| Issue number | 9 |
| DOIs | |
| State | Published - Jun 1996 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Chemistry
- Condensed Matter Physics
- Materials Chemistry
Keywords
- A. quantum wells
- D. optical properties
- E. nonlinear optics
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