Magnetometry of Novel 2-D Materials
Abstract
In a prior research work, published in Communication Physics (2020), we have proposed a novel algorithm to reconstruct 3D magnetic field activity produced by action potentials (AP) of mammalian neurons located in a cortical volume. We have simulated the expected 2D microscale magnetic field patterns measured by diamond NV microscopy. In fundamental work by Roth et. al, it has been shown that 3D current source reconstruction is a non-unique inverse problem, unless additionally constrained with prior source information. Our analyses have shown that the axon hillock segment in the neuron provides a unique dominant signature to resolve neuronal activity in 3D with sufficient accuracy. Since AP magnetic fields are millisecond scale phenomena, our dynamic magnetic microscopy setup may enable us to probe novel AP associated magnetic fields at microscope resolution. In Ref. [30], we demonstrated for the first time a wide-field magnetic field microscope capable of probing dynamically varying microscale magnetic field features at tunable imaging frame rates of 50-200 frames per second.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 31, 2022
- Accession Number
- AD1174964
Entities
People
- Anuj Bhatla
- Dasika Shishir
- Kasturi Saha
- Madhur Parashar