Observation of Quantum Beats in Photoluminescence of Self-Assembled Quantum Dots
Abstract
The photoluminescence (PL) kinetics of heterostructures with InP self-assembled quantum dots were studied under quasiresonant excitation in presence of external electric field. An oscillation behavior of the PL kinetics is observed at small applied bias. Period of the oscillation is about 30 ps and decay time is 20 to 50 ps depending on spectral point. We studied the PL kinetics in magnetic and electric fields. All set of the data gives a clear evidence that the oscillations are caused by the quantum beats of the optical transitions. A possible model of the observed phenomenon is discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 23, 2000
- Accession Number
- ADP013106
Entities
People
- Alexey V. Fedorov
- H. W. Ren
- I. V. Ignatiev
- S. V. Nair
- V. Davydov
Organizations
- Saint Petersburg State University