29 citations · 29 across the 2 of their papers we have counts for
6 papers
Negative refractive index in dielectric crystals containing stoichiometric rare-earth ions
Matthew C. Berrington, Henrik M. Rønnow, Matthew J. Sellars +1
We investigate the prospect of achieving negative permittivity and permeability at optical frequencies in a dielectric crystal containing stoichiometric rare-earth ions. We derive…
Initialisation protocol for efficient quantum memories using resolved hyperfine structure
James Stuart, Morgan Hedges, Rose Ahlefeldt +1
We describe a quantum memory spectral preparation strategy that maximises memory efficiency and bandwidth in materials such as 167 Er3+:Y2SiO5 in a high field regime, where the hyp…
Quantum processing with ensembles of rare earth ions in a stoichiometric crystal
R. L. Ahlefeldt, M. J. Pearce, M. R. Hush +1
We describe a method for creating small quantum processors in a crystal stoichiometric in an optically active rare earth ion. The crystal is doped with another rare earth, creating…
Microwave to optical photon conversion via fully concentrated rare-earth ion crystals
Jonathan. R. Everts, Matthew. C. Berrington, Rose. L. Ahlefeldt +1
Most investigations of rare earth ions in solids for quantum information have used rare earth ion doped crystals. Here we analyse the conversion of quantum information from microwa…
Piezospectroscopic measurement of high-frequency vibrations in a pulse-tube cryostat
Anne Louchet-Chauvet, Rose Ahlefeldt, Thierry Chanelière
Vibrations in cryocoolers are a recurrent concern to the end user. They appear in different parts of the acoustic spectrum depending on the refrigerator type, Gifford McMahon or pu…
NV- - N+ pair centre in 1b diamond
Neil B. Manson, Morgan Hedges, Michael S +6
The study establishes that the degree of optically induced spin polarization that can be achieved for NVin 1b diamond is limited by the concentration of single substitutional…