We study for the first time pulsed electrical excitation of NV in diamond and present a strategy to generate strictly one photon per pulse with a probability of 99% at a rate of 100 kHz.

Frontiers in OpticsJan 1, 20201 citation

Science

Electrically Excited Single Photons

Published Jan 4, 2002• 0 citations

Publisher

DOI: 10.1126/science.295.5552.9b

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We study for the first time pulsed electrical excitation of NV in diamond and present a strategy to generate strictly one photon per pulse with a probability of 99% at a rate of 100 kHz.

Frontiers in OpticsJan 1, 20201 citation

We report experiments in which positronium (Ps) atoms are produced in the

2\phantom{\rule{0.16em}{0ex}}^{3}S_{1}

level by single-photon excitation from the ground state. To accomplish this, Stark-mixed

n=2

states were optically excited in electric fields. By adiabatically switching off the electric field after laser excitation, some of the mixed states evolved into pure

2\phantom{\rule{0.16em}{0ex}}^{3}S_{1}

levels, whose presence was detected via the time dependence of their annihilation $\ensuremath{\gamma}$ radiation. The observed $\ensuremath{\approx}4%$ production efficiency relative to that of Rydberg Ps states is consistent with a Monte Carlo simulation that takes into account the rate at which the electric fields were switched off.