Color center qubit synthesis far from equilibrium with ion pulses from laser-acceleration

Intense ion pulses from laser-plasma ion acceleration enable rapid local electronic excitation and heating of materials and extend the parameter range for color center qubit synthesis. We characterize multi-species ion pulses with in situ diagnostics and ex situ sample analysis with a series of laser targets (including Kapton and titanium). Intense ion pulses can simultaneously heat and dope materials so that color centers can form directly, without thermal annealing. We quantify color center properties in low temperature photoluminescence measurements where we observe effects of the ion flux and ion fluence on color center formation efficiencies and linewidth broadening. We have identified conditions for formation of high quality G-centers, with an ensemble linewidth of <0.1 nm (full width half maximum), narrower than previously reported. We will discuss requirements for color center qubit integration and opportunities for color center synthesis with intense ion pulses.