TY - JOUR
T1 - From photons to phonons and back
T2 - A THz optical memory in diamond
AU - England, D. G.
AU - Bustard, P. J.
AU - Nunn, J.
AU - Lausten, R.
AU - Sussman, B. J.
PY - 2013/12/9
Y1 - 2013/12/9
N2 - Optical quantum memories are vital for the scalability of future quantum technologies, enabling long-distance secure communication and local synchronization of quantum components. We demonstrate a THz-bandwidth memory for light using the optical phonon modes of a room temperature diamond. This large bandwidth makes the memory compatible with down-conversion-type photon sources. We demonstrate that four-wave mixing noise in this system is suppressed by material dispersion. The resulting noise floor is just 7×10-3 photons per pulse, which establishes that the memory is capable of storing single quanta. We investigate the principle sources of noise in this system and demonstrate that high material dispersion can be used to suppress four-wave mixing noise in Λ-type systems. Published by the American Physical Society.
AB - Optical quantum memories are vital for the scalability of future quantum technologies, enabling long-distance secure communication and local synchronization of quantum components. We demonstrate a THz-bandwidth memory for light using the optical phonon modes of a room temperature diamond. This large bandwidth makes the memory compatible with down-conversion-type photon sources. We demonstrate that four-wave mixing noise in this system is suppressed by material dispersion. The resulting noise floor is just 7×10-3 photons per pulse, which establishes that the memory is capable of storing single quanta. We investigate the principle sources of noise in this system and demonstrate that high material dispersion can be used to suppress four-wave mixing noise in Λ-type systems. Published by the American Physical Society.
UR - http://www.scopus.com/inward/record.url?scp=84890291657&partnerID=8YFLogxK
UR - https://doi.org/10.1103/PhysRevLett.111.243601
U2 - 10.1103/PhysRevLett.111.243601
DO - 10.1103/PhysRevLett.111.243601
M3 - Article
AN - SCOPUS:84890291657
SN - 0031-9007
VL - 111
JO - Physical Review Letters
JF - Physical Review Letters
IS - 24
M1 - 243601
ER -