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All-Optical Photoluminescence Response of Nitrogen-Vacancy Ensembles in Diamond at Low Magnetic Fields
Xiechen Zheng, Jeyson Támara-Isaza, Zechuan Yin +7
All-optical (AO), microwave-free magnetometry using nitrogen-vacancy (NV) centers in diamond is attractive due to its broad sample compatibility and reduced experimental complexity…
Quantum Diamond Microscope for Dynamic Imaging of Magnetic Fields
Jiashen Tang, Zechuan Yin, Connor A. Hart +6
Wide-field imaging of magnetic signals using ensembles of nitrogen-vacancy (NV) centers in diamond has garnered increasing interest due to its combination of micron-scale resolutio…
Ramsey Envelope Modulation in NV Diamond Magnetometry
Jner Tzern Oon, Jiashen Tang, Connor A. Hart +4
Nitrogen-vacancy (NV) spin ensembles in diamond provide an advanced magnetic sensing platform, with applications in both the physical and life sciences. The development of isotopic…
Steady-state microwave mode cooling with a diamond NV ensemble
Donald P. Fahey, Kurt Jacobs, Matthew J Turner +4
A fundamental result of quantum mechanics is that the fluctuations of a bosonic field are given by its temperature . An electromagnetic mode with frequency in the microwave…
High-precision mapping of diamond crystal strain using quantum interferometry
Mason C. Marshall, Reza Ebadi, Connor Hart +4
Crystal strain variation imposes significant limitations on many quantum sensing and information applications for solid-state defect qubits in diamond. Thus, precision measurement…
Multiplexed sensing of magnetic field and temperature in real time using a nitrogen vacancy spin ensemble in diamond
Jeong Hyun Shim, Seong-Joo Lee, Santosh Ghimire +7
Nitrogen-Vacancy (NV) spin in diamond is a versatile quantum sensor, being able to measure physical quantities such as magnetic field, electric field, temperature, and pressure. In…
NV-Diamond Magnetic Microscopy using a Double Quantum 4-Ramsey Protocol
Connor A. Hart, Jennifer M. Schloss, Matthew J. Turner +3
We introduce a double quantum (DQ) 4-Ramsey measurement protocol that enables wide-field magnetic imaging using nitrogen vacancy (NV) centers in diamond, with enhanced homogeneity…
Magnetic Field Fingerprinting of Integrated Circuit Activity with a Quantum Diamond Microscope
Matthew J. Turner, Nicholas Langellier, Rachel Bainbridge +9
Current density distributions in active integrated circuits (ICs) result in patterns of magnetic fields that contain structural and functional information about the IC. Magnetic fi…
Decoherence of dipolar spin ensembles in diamond
Erik Bauch, Swati Singh, Junghyun Lee +8
We present a combined theoretical and experimental study of solid-state spin decoherence in an electronic spin bath, focusing specifically on ensembles of nitrogen vacancy (NV) col…
Sensitivity Optimization for NV-Diamond Magnetometry
John F. Barry, Jennifer M. Schloss, Erik Bauch +4
Solid-state spin systems including nitrogen-vacancy (NV) centers in diamond constitute an increasingly favored quantum sensing platform. However, present NV ensemble devices exhibi…
Simultaneous Broadband Vector Magnetometry Using Solid-State Spins
Jennifer M. Schloss, John F. Barry, Matthew J. Turner +1
We demonstrate a vector magnetometer that simultaneously measures all Cartesian components of a dynamic magnetic field using an ensemble of nitrogen-vacancy (NV) centers in a singl…
Ultralong Dephasing Times in Solid-State Spin Ensembles via Quantum Control
Erik Bauch, Connor A. Hart, Jennifer M. Schloss +5
Quantum spin dephasing is caused by inhomogeneous coupling to the environment, with resulting limits to the measurement time and precision of spin-based sensors. The effects of spi…