Electromagnetically Induced Transparency Observed in Raman Studies of Nitrogen-Vacancy Color Centers in Diamond

Philip Hemmer, Alexey V. Turukhin, M. S. Shahriar +1 more

Raman-excited spin coherences were experimentally observed in nitrogen-vacancy (N-V) diamond color centers by means of nondegenerate four-wave mixing and electromagnetically induced transparency. The maximal absorption suppression was found to be 17%, which corresponds to 70% of what is possible given the random geometric orientation of the N-V center in diamond. In the context of quantum computing in solids, this level of transparency represents efficient preparation of quantum bits, as well as the ability to perform arbitrary single-quantum-bit rotations.

Neil B. Manson, Xing-Fei He, Peter Fisk

Mikhail D. Lukin

Philip Hemmer, Alexey V. Turukhin, J. A. Musser +1 more

Raman excited spin coherences were experimentally observed in nitrogen-vacancy (N-V) diamond color centers via nondegenerate four-wave mixing (NDFWM) and electromagnetically induced transparency (EIT). The maximal EIT-induced absorption suppression was found to be 17%, which corresponds to 70% of what is possible given the four possible geometric orientations of the N-V center in diamond. The properties of these coherences are discussed in the context of potential applications to solid-state quantum computing and high-temperature spectral hole burning memories.

Eric Wilson, Neil B. Manson, C. Wei

This paper reports on the effect a perturbing field on an electromagnetically induced transparency. The studies involve inhomogeneously broadened spin transitions of a nitrogen-vacancy color center in diamond and it is observed that the transparency is unaffected, destroyed or split depending on how the perturbing field is coupled to the system. The observations are explained in terms of doubly driven inhomogeneously broadened 4-level systems.

Denis Antonov, Jörg Wrachtrup, Gabriel Bester