Magnetic resonance (MR) imaging relies on conventional electronics that is increasingly challenged by the push for stronger magnetic fields and higher channel count. These problems can be avoided by utilizing optical technologies. As a replacement for the standard low-noise preamplifier, we have implemented a new transduction principle that upconverts an MR signal to the optical domain and imaged a phantom in a clinical 3 T scanner with signal-to-noise comparable to classical induction detection.
Simonsen, A., Sánchez-Heredia, J. D., Saarinen, S. A., Ardenkjær-Larsen, J. H., Schliesser, A., & Polzik, E. S. (2019). Magnetic resonance imaging with optical preamplification and detection. Scientific Reports, 9(1), . https://doi.org/10.1038/s41598-019-54200-3