title: One- and Two-Dimensional Nuclear Magnetic Resonance Spectroscopy with a Diamond Quantum Sensor.
abstract: We report on Fourier spectroscopy experiments performed with near-surface nitrogen-vacancy centers in a diamond chip. By detecting the free precession of nuclear spins rather than applying a multipulse quantum sensing protocol, we are able to unambiguously identify the NMR species devoid of harmonics. We further show that, by engineering different Hamiltonians during free precession, the hyperfine coupling parameters as well as the nuclear Larmor frequency can be selectively measured with up to five digits of precision. The protocols can be combined to demonstrate two-dimensional Fourier spectroscopy. Presented techniques will be useful for mapping nuclear coordinates in molecules deposited on diamond sensor chips, en route to imaging their atomic structure.
authors.affiliation: Department of Physics, ETH Zurich, Otto Stern Weg 1, 8093 Zurich, Switzerland.
authors.forename: J M
authors.initials: JM
authors.lastname: Boss
authors.affiliation: Department of Physics, ETH Zurich, Otto Stern Weg 1, 8093 Zurich, Switzerland.
authors.forename: K
authors.initials: K
authors.lastname: Chang
authors.affiliation: Departmento de Física, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile.
authors.forename: J
authors.initials: J
authors.lastname: Armijo
authors.affiliation: Department of Physics, ETH Zurich, Otto Stern Weg 1, 8093 Zurich, Switzerland.
authors.forename: K
authors.initials: K
authors.lastname: Cujia
authors.affiliation: Department of Physics, ETH Zurich, Otto Stern Weg 1, 8093 Zurich, Switzerland.
authors.forename: T
authors.initials: T
authors.lastname: Rosskopf
authors.affiliation: Departmento de Física, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile.
authors.forename: J R
authors.initials: JR
authors.lastname: Maze
authors.affiliation: Department of Physics, ETH Zurich, Otto Stern Weg 1, 8093 Zurich, Switzerland.
authors.forename: C L
authors.initials: CL
authors.lastname: Degen