Nonlinear Nano-Optics: Probing One Exciton at a Time
Abstract
Coherent nonlinear optical spectroscopy of individual excitons in GaAs quantum dots is demonstrated and shows strong similarities with atoms in their coherent optical interaction, unlike higher dimensional heterostructures. The nonlinear response is dominated by an incoherent contribution (saturation) and a coherent contribution (population pulsations) of the single dot and compares well with present theory. The data shows that energy relaxation and dephasing rates are comparable, reflecting the absence of significant pure dephasing, and also demonstrate the presence of interdot energy transfer.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 28, 1998
- Accession Number
- ADA483997
Entities
People
- D. G. Steel
- D. Gammon
- D. S. Katzer
- Dong Hun Park
- Gang Chen
- N. H. Bonadeo
Organizations
- University of Michigan