Platform
Diamond devices, integrated optics and compact microwave delivery.
← All research themes
02 · Quantum diagnostics
Robust sensors for the real world
Quantum advantage in sensing is only useful when the sensor, control and inference stack survives outside an ideal laboratory.
The question
What becomes visible when the probe is part of the system?
How do we preserve sensitivity while adding bandwidth, dynamic range, packaging and reliable reconstruction? Our work treats the quantum sensor and its classical measurement chain as one engineered system.
How we approach it
Platform, measurement, target
Measurement
Coherent protocols, multiplexed readout, calibration and inverse reconstruction.
Scientific target
Diagnostics for electronics, magnetic systems and other high-demand environments.
Current directions
Questions in motion
These project areas evolve as experiments and collaborations develop.
Integrated diamond sensors
Packaging light, microwaves and diamond into modular heads that can be deployed and reproduced.
Coded quantum readout
Separating multiple sources at one carrier frequency through phase coding and coherent detection.
Self-calibrating measurements
Combining physical models and adaptive control so that measurements remain trustworthy as conditions change.
Selected reading
Related publications
Nature Materials · 2024
Revealing Emergent Magnetic Charge in an Antiferromagnet with Diamond Quantum Magnetometry
A. K. C. Tan, H. Jani, M. Högen, L. Stefan, et al.
Read paper ↗ACS Nano · 2023Imaging Nucleation and Propagation of Pinned Domains in Few-Layer Fe₅₋ₓGeTe₂
M. Högen, R. Fujita, A. K. C. Tan, A. A. Geim, et al.
Read paper ↗Physical Review Applied · 2021Multiangle Reconstruction of Domain Morphology with All-Optical Diamond Magnetometry
L. Stefan, A. K. C. Tan, B. Vindolet, M. Högen, et al.
Read paper ↗Work with us