Electromagnetically induced transparency in low-doped n-GaAs
Caspar H. van der Wal, Maksym Sladkov, Alok U. Chaubal +6 more
We report the observation of electromagnetically induced transparency (EIT) with an ensemble of donor-bound electrons in low-doped n-GaAs. We used pure GaAs layers with Si doping at very low concentration in a strong magnetic field. EIT was implemented with the two optical transitions that exist for the three-level system that is formed by the two electron spin states and a donor-bound trion state. Our results show that EIT with n-GaAs can serve as a platform for studies of nonlocal quantum entanglement with spins in semiconductors, as well as for controlling and probing dynamical nuclear polarization with coherent electron spins.
AIP conference proceedings•Jan 1, 2011•0 citations