Transfer of Phase Information between Optical and Microwave Fields via Spin Coherence in Diamond

Ignas Lekavicius, D. Andrew Golter, Thein Oo +1 more

Norikazu Mizuochi

Ignas Lekavicius, D. Andrew Golter, Thein Oo +1 more

We demonstrate the coherent coupling and the resulting transfer of phase information between microwave and optical fields in a single nitrogen vacancy center in diamond. The relative phase of two microwave fields is encoded in a coherent superposition spin state. This phase information is then retrieved with a pair of optical fields. A related process is also used for the transfer of phase information from optical to microwave fields. These studies show the essential role of dark states, including optical pumping into the dark states, in the coherent microwave-optical coupling and open the door to the full quantum state transfer between microwave and optical fields in a solid-state spin ensemble.

Ignas Lekavicius, D. Andrew Golter, Thein Oo +1 more

We demonstrate the coherent coupling and the resulting transfer of phase information between microwave and optical fields in a single nitrogen vacancy center in diamond. The relative phase of two microwave fields is encoded in a coherent superposition spin state. This phase information is then retrieved with a pair of optical fields. A related process is also used for the transfer of phase information from optical to microwave fields. These studies show the essential role of dark states, including optical pumping into the dark states, in the coherent microwave-optical coupling and open the door to the full quantum state transfer between microwave and optical fields in a solid-state spin ensemble.

Ignas Lekavicius, D. Andrew Golter, Thein Oo +1 more

Using phase-dependent coherent population trapping, we demonstrate the conversion of microwave phase information into optical phase information via an electron spin coherence in diamond and vice versa.

Bob B. Buckley