4k citations · 7k across the 23 of their papers we have counts for
23 papers
Photoionization of negatively charged NV centers in diamond: theory and ab initio calculations
Lukas Razinkovas, Marek Maciaszek, Friedemann Reinhard +2
We present ab-initio calculations of photoionization thresholds and cross sections of the negatively charged nitrogen-vacancy (NV) center in diamond from the ground and…
Robust All-Optical Single-Shot Readout of NV Centers in Diamond
Dominik M. Irber, Francesco Poggiali, Fei Kong +7
High-fidelity projective readout of a qubit's state in a single experimental repetition is a prerequisite for various quantum protocols of sensing and computing. Achieving single-s…
Detection of cellular micromotion by advanced signal processing
Stephan Rinner, Alberto Trentino, Heike Url +4
Cellular micromotion - a tiny movement of cell membranes on the nanometer-micrometer scale - has been proposed as a pathway for inter-cellular signal transduction and as a label-fr…
Can surface-transfer doping and UV irradiation during annealing improve shallow implanted Nitrogen-Vacancy centers in diamond?
N. J. Glaser, G. Braunbeck, O. Bienek +2
It has been reported that conversion yield and coherence time of ion-implanted NV centers improve if the Fermi level is raised or lowered during the annealing step following implan…
Decoherence mitigation by real-time noise acquisition
Georg Braunbeck, Maximilian Kaindl, Andreas Michael Waeber +1
We present a scheme to neutralize the dephasing effect induced by classical noise on a qubit. The scheme builds upon the key idea that this kind of noise can be recorded by a class…
Dispersive Readout of Room Temperature Spin Qubits
J. Ebel, T. Joas, M. Schalk +3
We demonstrate dispersive readout of the spin of an ensemble of Nitrogen-Vacancy centers in a high-quality dielectric microwave resonator at room temperature. The spin state is inf…
Nanoscale Sensing and Quantum Coherence
Friedemann Reinhard
Small solid state qubits, most prominently single spins in solids, can be remarkable sensors for various physical quantities ranging from magnetic fields to temperature. They packa…
A Planar Scanning Probe Microscope
Stefan Ernst, Dominik M. Irber, Andreas M. Waeber +2
Scanning probe microscopy (SPM) is traditionally based on very sharp tips, where the small size of the apex is critical for resolution. This paradigm is about to shift, since a nov…
Can ultraprecision polishing techniques improve the coherence times of nitrogen-vacancy centers in diamond?
G. Braunbeck, S. Mandal, M. Touge +2
We investigate the correlation between surface roughness and corresponding times of nearsurface nitrogen-vacancy centers (~7 nm/ 5 keV implantation energy) in diamond. For th…
Quantum Sensing of Weak Radio-Frequency Signals by Pulsed Mollow Absorption Spectroscopy
Timo Joas, Andreas M. Waeber, Georg Braunbeck +1
Quantum sensors, qubits sensitive to external fields, have become powerful detectors for various small acoustic and electromagnetic fields. A major key to their success have been d…
Holography of Wi-Fi radiation
Philipp Holl, Friedemann Reinhard
Wireless data transmission systems such as WiFi or Bluetooth emit coherent light - electromagnetic waves with precisely known amplitude and phase. Propagating in space, this radiat…
Quantum sensing
C. L. Degen, F. Reinhard, P. Cappellaro
"Quantum sensing" describes the use of a quantum system, quantum properties or quantum phenomena to perform a measurement of a physical quantity. Historical examples of quantum sen…
Efficient electrical spin readout of NV- centers in diamond
Florian M. Hrubesch, Georg Braunbeck, Martin Stutzmann +2
Using pulsed photoionization the coherent spin manipulation and echo formation of ensembles of NV- centers in diamond are detected electrically realizing contrasts of up to 17 %. T…
Relaxometry and dephasing imaging of superparamagnetic magnetite nanoparticles using a single qubit
Dominik Schmid-Lorch, Thomas Häberle, Friedemann Reinhard +5
To study the magnetic dynamics of superparamagnetic nanoparticles we use scanning probe relaxometry and dephasing of the nitrogen-vacancy (NV) center in diamond, characterizing the…
Nano-engineered Diamond Waveguide as a Robust Bright Platform for Nanomagnetometry Using Shallow Nitrogen Vacancy Centers
S. Ali Momenzadeh, Rainer J. Stöhr, Felipe Favaro de Oliveira +5
Photonic structures in diamond are key to most of its application in quantum technology. Here, we demonstrate tapered nano-waveguides structured directly onto the diamond substrate…
Scanning probe microscopy with chemical contrast by nanoscale nuclear magnetic resonance
Thomas Häberle, Dominik Schmid-Lorch, Friedemann Reinhard +1
Scanning probe microscopy is one of the most versatile windows into the nanoworld, providing imaging access to a variety of sample properties, depending on the probe employed. Tunn…
Tracking Temperature Dependent Relaxation Times of Individual Ferritin Nanomagnets with a Wide-band Quantum Spectrometer
Eike Schäfer-Nolte, Lukas Schlipf, Markus Ternes +3
We demonstrate the tracking of the spin dynamics of ensemble and individual magnetic ferritin proteins from cryogenic up to room temperature using the nitrogen-vacancy color center…
High-Resolution Correlation Spectroscopy of 13C Spins Near a Nitrogen-Vacancy Center in Diamond
Abdelghani Laraoui, Florian Dolde, Christian Burk +3
Spin complexes comprising the nitrogen-vacancy (NV) center and neighboring spins are being considered as a building block for a new generation of spintronic and quantum information…
Single Defect Center Scanning Near-Field Optical Microscopy on Graphene
J. Tisler, T. Oeckinghaus, R. Stöhr +3
We demonstrate high resolution scanning fluorescence resonance energy transfer 10 microscopy between a single nitrogen-vacancy center as donor and graphene as acceptor. 11 Images w…
Augmenting the spin properties of shallow implanted NV-centers by CVD-overgrowth
Tobias Staudacher, Florestan Ziem, Lutz Häussler +6
The controlled scaling of diamond defect center based quantum registers relies on the ability to position NVs with high spatial resolution. Using ion implantation, shallow (< 10 nm…
Sensing electric fields using single diamond spins
Florian Dolde, Helmut Fedder, Marcus W. Doherty +8
The ability to sensitively detect charges under ambient conditions would be a fascinating new tool benefitting a wide range of researchers across disciplines. However, most current…
Chemical control of the charge state of nitrogen-vacancy centers in diamond
M. V. Hauf, B. Grotz, B. Naydenov +8
We investigate the effect of surface termination on the charge state of nitrogen vacancy centers, which have been ion-implanted few nanometers below the surface of diamond. We find…
Increasing the coherence time of single electron spins in diamond by high temperature annealing
Boris Naydenov, Friedemann Reinhard, Anke Lämmle +6
Negatively charged Nitrogen-Vacancy (NV) centers in diamond produced by ion implantation often show properties different from NVs created during the crystal growth. We observe…