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Muhib Omar

As seen in: Nature, Physical Review B
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Articles

Zero- to ultralow-field J-spectroscopy with a diamond magnetometer - Communications Chemistry

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By Muhib Omar, Jingyan Xu, Raphael Kircher, Pouya Sharbati, Shaowen Zhang, Georgios Chatzidrosos, James Eills, Román Picazo-Frutos, Dmitry Budker, Danila A. Barskiy, Arne Wickenbrock
| Nature Verified
Abstract Nuclear magnetic resonance (NMR) is a powerful tool for probing molecular structure and dynamics, but conventional high-field systems are bulky and suffer from field inhomogeneities. Zero- to ultra-low-field (ZULF) NMR overcomes these limits by exploiting internal spin interactions in a magnet-free, shielded environment.
Open in Who Shared Issue with article?

Microwave-free wide-field magnetometry using nitrogen-vacancy centers

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By Joseph Shaji Rebeirro, Johannes Gutenberg-Universität Mainz, Helmholtz-Institut Mainz, Muhib Omar
| Physical Review B
A wide-field magnetometer utilizing nitrogen-vacancy (N-V) centers in diamond that does not require microwaves is demonstrated. It is designed for applications where microwaves need to be avoided, such as magnetic imaging of biological or conductive samples. The system exploits a magnetically sensitive feature of N-V centers near the ground-state level anticrossing (GSLAC). An applied test field from a wire has been mapped over an imaging area of ≈500×470μm2.
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