A/Prof David Simpson

S Eldemrdash, G Thalassinos, A Alzahrani, Q Sun, E Walsh, E Grant, H Abe, TL Greaves, T Ohshima, P Cigler, P Matějíček, DA Simpson, AD Greentree, G Bryant, BC Gibson, P Reineck

Journal article | 2023 | Carbon

Fluorescent nanodiamonds (FNDs) containing nitrogen-vacancy (NV) centers can be used as nanoscale sensors for temperature and elec..

Temperature and angle dependent magnetic imaging of biological iron nanoparticles using quantum diamond microscopy

RW de Gille, AJ Healey, IO Robertson, LT Hall, J-P Tetienne, EP Malkemper, DA Keays, LCL Hollenberg, DA Simpson

Journal article | 2023 | APPLIED PHYSICS LETTERS

Quantum diamond microscopy is an emerging versatile technique for studying the magnetic properties of materials. It has been appli..

Nonmonotonic Superparamagnetic Behavior of the Ferritin Iron Core Revealed via Quantum Spin Relaxometry

Erin S Grant, Liam T Hall, Lloyd CL Hollenberg, Gawain McColl, David A Simpson

Journal article | 2022 | ACS NANO

Ferritin is the primary storage protein in our body and is of significant interest in biochemistry, nanotechnology, and condensed ..

A diamond voltage imaging microscope

DJ McCloskey, N Dontschuk, A Stacey, C Pattinson, A Nadarajah, LT Hall, LCL Hollenberg, S Prawer, DA Simpson

Journal article | 2022 | NATURE PHOTONICS

Technologies that capture the complex electrical dynamics occurring in biological systems, across fluid membranes and at solid–liq..

Imaging Current Paths in Silicon Photovoltaic Devices with a Quantum Diamond Microscope

SC Scholten, GJ Abrahams, BC Johnson, AJ Healey, IO Robertson, DA Simpson, A Stacey, S Onoda, T Ohshima, TC Kho, J Ibarra Michel, J Bullock, LCL Hollenberg, J-P Tetienne

Journal article | 2022 | PHYSICAL REVIEW APPLIED

Magnetic imaging with nitrogen-vacancy centers in diamond, also known as quantum diamond microscopy, has emerged as a useful techn..

Proximal nitrogen reduces the fluorescence quantum yield of nitrogen-vacancy centres in diamond

Marco Capelli, Lukas Lindner, Tingpeng Luo, Jan Jeske, Hiroshi Abe, Shinobu Onoda, Takeshi Ohshima, Brett Johnson, David A Simpson, Alastair Stacey, Philipp Reineck, Brant C Gibson, Andrew D Greentree

Journal article | 2022 | NEW JOURNAL OF PHYSICS

The nitrogen-vacancy colour centre in diamond is emerging as one of the most important solid-state quantum systems. It has applica..

Creation of nitrogen-vacancy centers in chemical vapor deposition diamond for sensing applications

T Luo, L Lindner, J Langer, V Cimalla, X Vidal, F Hahl, C Schreyvogel, S Onoda, S Ishii, T Ohshima, D Wang, DA Simpson, BC Johnson, M Capelli, R Blinder, J Jeske

Journal article | 2022 | NEW JOURNAL OF PHYSICS

The nitrogen-vacancy (NV) center in diamond is a promising quantum system for magnetometry applications exhibiting optical readout..

Nanopillar structures for enhanced dipole emission

S Li, SI Sato, DA Simpson, T Ohshima, AD Greentree, BC Gibson

Conference Proceedings | 2022 | Optics InfoBase Conference Papers

Nanoscale pillars are important for tailoring optical emission from nanoscale emitters. Here we consider nano pillar geometries de..

An integrated widefield probe for practical diamond nitrogen-vacancy microscopy

GJ Abrahams, SC Scholten, AJ Healey, IO Robertson, N Dontschuk, SQ Lim, BC Johnson, DA Simpson, LCL Hollenberg, J-P Tetienne

Journal article | 2021 | APPLIED PHYSICS LETTERS

The widefield diamond nitrogen-vacancy (NV) microscope is a powerful instrument for imaging magnetic fields. However, a key limita..

Acoustomicrofluidic Concentration and Signal Enhancement of Fluorescent Nanodiamond Sensors

Asma Akther, Ella P Walsh, Philipp Reineck, Brant C Gibson, Takeshi Ohshima, Hiroshi Abe, Gawain McColl, Nicole L Jenkins, Liam T Hall, David A Simpson, Amgad R Rezk, Leslie Y Yeo

Journal article | 2021 | ANALYTICAL CHEMISTRY

Diamond nitrogen-vacancy (NV) centers constitute a promising class of quantum nanosensors owing to the unique magneto-optic proper..