Microwave-free imaging magnetometry with nitrogen-vacancy centers in
nanodiamonds at near-zero field
Microwave-free imaging magnetometry with nitrogen-vacancy centers in
nanodiamonds at near-zero field
Magnetometry using Nitrogen-Vacancy (NV) color centers in diamond predominantly relies on microwave spectroscopy. However, microwaves may hinder certain studies involving biological systems or thin conductive samples. This work demonstrates a wide-field, microwave-free imaging magnetometer utilizing NV centers in nanodiamonds by exploiting the cross-relaxation feature near zero magnetic fields under ambient …