82 citations · 453 across the 23 of their papers we have counts for
23 papers
Sub-microsecond conformational dynamics in an optical nanocavity
Heehun Sung, Sam C Scholten, Pavlina Sasheva +2
Microsecond conformational changes underlie many protein functions, but ensemble averaging has been needed to observe them without labels. Single-shot measurements on individual pr…
Spin-dependent photoluminescence in carbon-based quantum dots
Erin S. Grant, Joseph F. Olorunyomi, Sam C. Scholten +12
The ability to modulate the photoluminescence (PL) of nanomaterials via spin-related effects is vital for many emerging quantum technologies, with nanoscale quantum sensing and ima…
Optically detected magnetic resonance of wafer-scale hexagonal boron nitride thin films
Sam C. Scholten, Jakub Iwański, Kaijian Xing +15
Hexagonal boron nitride (hBN) has recently been shown to host native defects exhibiting optically detected magnetic resonance (ODMR) with applications in nanoscale magnetic sensing…
Imaging magnetic switching in orthogonally twisted stacks of a van der Waals antiferromagnet
Alexander J Healey, Cheng Tan, Boris Gross +9
Stacking van der Waals magnets holds promise for creating new hybrid materials with properties that do not exist in bulk materials. Here we investigate orthogonally twisted stacks…
Radiofrequency receiver based on isotropic solid-state spins
Islay O. Robertson, Brett C. Johnson, Giannis Thalassinos +5
Optically addressable solid-state spins have been proposed as robust radiofrequency (RF)-optical transducers sensitive to a specific RF frequency tuned by an external static magnet…
Violet to near-infrared optical addressing of spin pairs in hexagonal boron nitride
Priya Singh, Islay O. Robertson, Sam C. Scholten +9
Optically addressable solid-state spins are an important platform for practical quantum technologies. Van der Waals material hexagonal boron nitride (hBN) is a promising host as it…
Towards high spatial resolution magnetic imaging with a compact practical quantum diamond microscope
Kevin J. Rietwyk, Alex Shaji, Islay O. Robertson +6
Widefield quantum diamond microscopy is a powerful technique for imaging magnetic fields with high sensitivity and spatial resolution. However, current methods to approach the ulti…
A charge transfer mechanism for optically addressable solid-state spin pairs
Islay O. Robertson, Benjamin Whitefield, Sam C. Scholten +9
Optically detected magnetic resonance (ODMR) with no resolvable zero-field splitting has been observed from emitters in hexagonal boron nitride across a broad range of wavelengths,…
Optimisation of electron irradiation for creating spin ensembles in hexagonal boron nitride
Alexander J Healey, Priya Singh, Islay O Robertson +9
Boron vacancy centre () ensembles in hexagonal boron nitride (hBN) have attracted recent interest for their potential as two-dimensional solid-state quantum sensors. I…
Stray magnetic field imaging of thin exfoliated iron halides flakes
Fernando Meneses, Rongrong Qi, Alexander J. Healey +8
Magnetic van der Waals materials are often proposed for use in future spintronic devices, aiming to leverage the combination of long-range magnetic order and near-atomic thinness t…
Multi-species optically addressable spin defects in a van der Waals material
Sam C. Scholten, Priya Singh, Alexander J. Healey +11
Optically addressable spin defects hosted in two-dimensional van der Waals materials represent a new frontier for quantum technologies, promising to lead to a new class of ultrathi…
Detection of paramagnetic spins with an ultrathin van der Waals quantum sensor
Islay O. Robertson, Sam C. Scholten, Priya Singh +8
Detecting magnetic noise from small quantities of paramagnetic spins is a powerful capability for chemical, biochemical, and medical analysis. Quantum sensors based on optically ad…
On the creation of near-surface nitrogen-vacancy centre ensembles by implantation of type Ib diamond
A. J. Healey, S. C. Scholten, A. Nadarajah +5
Dense, near-surface (within 10 nm) ensembles of nitrogen-vacancy (NV) centres in diamond are rapidly moving into prominence as the workhorse of a variety of envisaged applications,…
Aberration control in quantitative widefield quantum microscopy
S. C. Scholten, I. O. Robertson, G. J. Abrahams +3
Widefield quantum microscopy based on nitrogen-vacancy (NV) centres in diamond has emerged as a powerful technique for quantitative mapping of magnetic fields with a sub-micron res…
Imaging current control of magnetization in FeGeTe with a widefield nitrogen-vacancy microscope
Islay O. Robertson, Cheng Tan, Sam C. Scholten +6
Van der Waals (vdW) magnets are appealing candidates for realising spintronic devices that exploit current control of magnetization (e.g. switching or domain wall motion), but so f…
Varied magnetic phases in a van der Waals easy-plane antiferromagnet revealed by nitrogen-vacancy center microscopy
A. J. Healey, S. Rahman, S. C. Scholten +7
Interest in van der Waals materials often stems from a desire to miniaturise existing technologies by exploiting their intrinsic layered structure to create near atomically-thin co…
Imaging current paths in silicon photovoltaic devices with a quantum diamond microscope
S. C. Scholten, G. J. Abrahams, B. C. Johnson +11
Magnetic imaging with nitrogen-vacancy centers in diamond, also known as quantum diamond microscopy, has emerged as a useful technique for the spatial mapping of charge currents in…
Quantum microscopy with van der Waals heterostructures
A. J. Healey, S. C. Scholten, T. Yang +10
Quantum microscopes based on solid-state spin quantum sensors have recently emerged as powerful tools for probing material properties and physical processes in regimes not accessib…
An Integrated Widefield Probe for Practical Diamond Nitrogen-Vacancy Microscopy
G. J. Abrahams, S. C. Scholten, A. J. Healey +7
The widefield diamond nitrogen-vacancy (NV) microscope is a powerful instrument for imaging magnetic fields. However, a key limitation impeding its wider adoption is its complex op…
Widefield quantum microscopy with nitrogen-vacancy centers in diamond: strengths, limitations, and prospects
S. C. Scholten, A. J. Healey, I. O. Robertson +3
A dense layer of nitrogen-vacancy (NV) centers near the surface of a diamond can be interrogated in a widefield optical microscope to produce spatially resolved maps of local quant…
Improved current density and magnetisation reconstruction through vector magnetic field measurements
D. A. Broadway, S. E. Lillie, Sam C. Scholten +5
Stray magnetic fields contain significant information about the electronic and magnetic properties of condensed matter systems. For two-dimensional (2D) systems, stray field measur…
Imaging domain reversal in an ultrathin van der Waals ferromagnet
David A. Broadway, Sam C. Scholten, Cheng Tan +12
The recent isolation of two-dimensional van der Waals magnetic materials has uncovered rich physics that often differs from the magnetic behaviour of their bulk counterparts. Howev…
Laser modulation of superconductivity in a cryogenic widefield nitrogen-vacancy microscope
Scott E. Lillie, David A. Broadway, Nikolai Dontschuk +6
Microscopic imaging based on nitrogen-vacancy (NV) centres in diamond, a tool increasingly used for room-temperature studies of condensed matter systems, has recently been extended…