Abstract
This review will summarize general aspects of optically pumped magnetometers and some of their features and challenges for applications to biomagnetic measurements. Such sensors rely on Larmor spin precession of optically polarized paramagnetic atoms in the magnetic field to be measured. Several optical magnetometry methods have been developed with sensitivity approaching or even exceeding that of SQUID magnetometers. Atomic sensors can be made quite compact, allowing measurements of magnetic fields closer to biomagnetic field sources. Present efforts are focused on the development of inexpensive systems with many small sensors that are robust in the presence of external magnetic field interference.
| Original language | American English |
|---|---|
| Title of host publication | Flexible High Performance Magnetic Field Sensors |
| Subtitle of host publication | On-Scalp Magnetoencephalography and Other Applications |
| Publisher | Springer International Publishing |
| Pages | 3-15 |
| Number of pages | 13 |
| ISBN (Electronic) | 9783031053634 |
| ISBN (Print) | 9783031053627 |
| DOIs | |
| State | Published - Aug 26 2022 |
ASJC Scopus subject areas
- General Medicine
- General Neuroscience
- General Engineering
- General Biochemistry, Genetics and Molecular Biology
- General Chemistry
- General Agricultural and Biological Sciences
Keywords
- Alkali metal magnetometer
- Atomic magnetometer
- Bloch equation
- Optically pumped magnetometer
- Scalar magnetometer
- Shot noise
- Spin exchange relaxation free
- Spin projection noise
- Vector magnetometer