Bulk Nuclear Polarization Enhanced at Room-Temperature by Optical Pumping

Abstract

Bulk 13C polarization can be strongly enhanced in diamond at room-temperature based on the optical pumping of nitrogen-vacancy color centers. This effect was confirmed by irradiating suitably aligned single-crystals at a ~50 mT field promoting anti-crossings between electronic excited-state levels, followed by shuttling of the sample into a custom-built NMR setup and by subsequent 13C detection. A nuclear polarization of ~0.5% - equivalent to the 13C polarization achievable by thermal polarization at room temperature at fields of ~2000 T - was measured, and its bulk nature determined based on line shape and relaxation measurements. Positive and negative enhanced polarizations were obtained, with a generally complex but predictable dependence on the magnetic field during optical pumping. Owing to its simplicity, this 13C room-temperature polarizing strategy provides a promising new addition to existing nuclear hyperpolarization techniques.

Main text: 6 pages, 3 figures. Supplementary: 7 pages, 4 figures

References in corpus (6)

• High-sensitivity diamond magnetometer with nanoscale resolution
• Dynamic polarization of single nuclear spins by optical pumping of NV color centers in diamond at room temperature
• The negatively charged nitrogen-vacancy centre in diamond: the electronic solution
• Broadband magnetometry by infrared-absorption detection of nitrogen-vacancy ensembles in diamond
• Optical polarization of nuclear ensembles in diamond
• Single-shot readout of multiple nuclear spin qubits in diamond under ambient conditions

Cited by in corpus (60)

• Optical polarization of nuclear spins in silicon carbide
• A scheme for direct detection of qubit-environment entanglement generated during qubit pure dephasing
• Orientation independent room-temperature optical 13C hyperpolarization in powdered diamond
• Local and bulk 13C hyperpolarization in NV-centered diamonds at variable fields and orientations
• Optical polarization of nuclear ensembles in diamond
• Optically induced dynamic nuclear spin polarisation in diamond
• Quantum probe hyperpolarisation of molecular nuclear spins
• Optical hyperpolarization of 13C nuclear spins in nanodiamond ensembles
• Enhanced dynamic nuclear polarization via swept microwave frequency combs
• Microwave saturation spectroscopy of nitrogen-vacancy ensembles in diamond
• Coupled charge and spin dynamics in high-density ensembles of nitrogen-vacancy centers in diamond
• Multi-spin-assisted optical pumping of bulk 13C nuclear spin polarization in diamond
• Microwave-assisted cross-polarization of nuclear spin ensembles from optically-pumped nitrogen-vacancy centers in diamond
• Robust techniques for polarization and detection of nuclear spin ensembles
• Non-Markovianity-assisted high-fidelity Deutsch-Jozsa algorithm in diamond
• High-Field Magnetometry with Hyperpolarized Nuclear Spins
• Recursive polarization of nuclear spins in diamond at arbitrary magnetic fields
• Longitudinal spin relaxation model applied to point defect qubit systems
• Dynamic ${}^{14}\mathrm{N}$ nuclear spin polarization in nitrogen-vacancy centers in diamond
• Dynamically Polarizing Spin Register of NV Centers in Diamond using Chopped Laser Pulses
• Large Room Temperature Bulk DNP of ${}^{13}$C via P1 Centers in Diamond
• How to detect qubit-environment entanglement generated during qubit dephasing
• Influence of nuclear spin polarization on spin echo signal of NV center qubit
• Modulated Continuous Wave Control for Energy-efficient Electron-nuclear Spin Coupling
• Rapidly enhanced spin polarization injection in an optically pumped spin ratchet
• High fidelity bi-directional nuclear qubit initialization in SiC
• Optical hyperpolarization of nitrogen donor spins in bulk diamond
• Two-electron-spin ratchets as a platform for microwave-free dynamic nuclear polarization of arbitrary material targets
• High temperature annealing enhanced diamond 13C hyperpolarization at room temperature
• Optical detection of paramagnetic defects in diamond using off-resonance excitation of NV centers
• Low field nuclear polarization using Nitrogen Vacancy centers in diamonds
• Divergent effects of laser irradiation on ensembles of nitrogen-vacancy centers in bulk and nano-diamonds: implications for biosensing
• All-optical hyperpolarization of electron and nuclear spins in diamond
• Diamond Nitrogen-Vacancy Center Magnetometry: Advances and Challenges
• Qubit-environment Negativity versus Fidelity of conditional environmental states for an NV-center spin qubit interacting with a nuclear environment
• Dynamical decoupling methods in nanoscale NMR
• Detection of entanglement during pure dephasing evolutions for systems and environments of any size
• Preserving Entanglement in a Solid-Spin System Using Quantum Autoencoders
• Strongly polarizing weakly coupled ${}^{13}$C nuclear spins with optically pumped nitrogen-vacancy center
• Optically Detected Magnetic Resonances of Nitrogen-Vacancy Ensembles in 13C Enriched Diamond
• Electron-to-nuclear spectral mapping via "Galton board" dynamic nuclear polarization
• Appearance of objectivity for NV centers interacting with dynamically polarized nuclear environment
• Optimal photon energies for initialization of hybrid spin quantum registers of NV centers in diamond
• Level-crossing induced spin phenomena in SiC: a theoretical study
• Precession-induced nonclassicality of the free induction decay of NV centers by a dynamical polarized nuclear spin bath
• Maximizing information obtainable by quantum sensors through the Quantum Zeno Effect
• Optical dynamic nuclear polarization of ${}^{13}$C spins in diamond at a low field with multi-tone microwave irradiation
• Nuclear spin temperature reversal via continuous radio-frequency driving
• Continuously tracked, stable, large excursion trajectories of dipolar coupled nuclear spins
• Measurement-induced nuclear spin polarization
• Dynamic-nuclear-polarization-weighted spectroscopy of multi-spin electronic-nuclear clusters
• Sensing of single nuclear spins in random thermal motion with proximate nitrogen-vacancy centers
• Multiphoton resonances in nitrogen-vacancy defects in diamond
• Adaptively partitioned analog quantum simulation on near-term quantum computers: The nonclassical free-induction decay of NV centers in diamond
• Room temperature bulk diamond 13-C hyperpolarisation -- Strong evidence for a complex four spin coupling
• Local probing of nuclear bath polarization with a single electronic spin
• Robust external spin hyperpolarization of quadrupolar nuclei enabled by strain
• Estimation of nuclear polarization via discrete measurement of NV center spin evolution
• Understanding the magnetic resonance spectrum of nitrogen vacancy centers in an ensemble of randomly-oriented nanodiamonds
• Photoconversion of shallow nitrogen-vacancy centers in flat and nanostructured diamond under high-power laser irradiation