What is it about?
We report a highly sensitive magnetometer using a rubidium vapor in a laser-written channel with sub-mm cross section. Microfluidic channels and photonic structures could be incorporated in the device for lab-on-a-chip quantum sensing applications.
Featured Image
Photo by Opt Lasers on Unsplash
Why is it important?
There are not many sensitive magnetometers that combine sub-mm spatial resolution with sensitivity below nanotesla. Here we realize this combination, opening new avenues for lab-on-a-chip applications of atomic quantum sensing to investigate unexplored or undetected magnetic phenomena at the microscale.
Perspectives
Apart from numerous applications to magnetic microscopy, i.e. to detect magnetic fields from magnetic particles or biological samples in microfluidic channels, the work pushes forward the miniaturization of atomic vapor cells and their potential integration with photonic structures for the development of atomic-photonic chips, to bridge the gap between atomic quantum technologies and integrated photonics.
Vito Giovanni Lucivero
Universita degli Studi di Bari Aldo Moro
Read the Original
This page is a summary of: Picotesla optically pumped magnetometer using a laser-written vapor cell with sub-mm cross section, Journal of Applied Physics, October 2024, American Institute of Physics,
DOI: 10.1063/5.0230180.
You can read the full text:
Contributors
The following have contributed to this page
