Ran Fischer

TL;DR: The detection and polarization of nuclear spins in diamond at room temperature by using a single nitrogen-vacancy (NV) center and Hartmann-Hahn double resonance to coherently enhance the signal from a single nuclear spin while decoupling from the noisy spin bath is reported.

TL;DR: Positive and negative enhanced polarizations were obtained, with a generally complex but predictable dependence on the magnetic field during optical pumping, and this (13)C room temperature polarizing strategy provides a promising new addition to existing nuclear hyperpolarization techniques.

TL;DR: This work reports an approach for achieving efficient electron-13C spin-alignment transfers, compatible with a broad range of magnetic field strengths and field orientations with respect to the diamond crystal, and opens new perspectives for applications of diamond nitrogen-vacancy centres in nuclear magnetic resonance, and in quantum information processing.

TL;DR: In this paper, the authors report the polarization of a dense nuclear-spin ensemble in diamond and its dependence on magnetic field and temperature, which is based on the transfer of electron spin polarization of negatively charged nitrogen vacancy (NV) color centers to the nuclear spins via the excited-state level anticrossing of the center.

TL;DR: In this paper, the phonon sideband was measured using pump-probe spectroscopy, and a high-energy 169-meV localized phonon mode of the 1-phonon absorption spectrum was identified.