Physical Review Letters
Electromagnetically Induced Transparency in Semiconductors via Biexciton Coherence
Mark C. Phillips, Hailin Wang, I. Rumyantsev, N. H. Kwong, Ryu Takayama, Rolf H. Binder
Abstract
We report an experimental demonstration and theoretical analysis of electromagnetically induced transparency in a GaAs quantum well, in which the absorption of an exciton resonance is reduced by more than twentyfold. The destructive quantum interference in this scheme is set up by a control pulse that couples to a resonance of biexcitons. These studies illustrate that many-particle interactions, which are inherent in semiconductors and are often detrimental to quantum coherences, can also be harnessed to manipulate these coherences.