Open AccessOptically-controlled density of alkali atom vapor for biomagnetic sensing applications
Author(s) -
S. Tsvetkov,
S. Gateva
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1056/1/012013
Subject(s) - miniaturization , magnetometer , alkali metal , atom optics , materials science , vapour density , atom (system on chip) , homogeneous , physical vapor deposition , nanotechnology , coating , optoelectronics , optics , magnetic field , chemistry , physics , computer science , vapor pressure , thermodynamics , embedded system , organic chemistry , quantum mechanics
Biomagnetic sensing is a powerful non-invasive tool for sensing the extremely small magnetic signals of living organisms. In recent years, the efforts to achieve higher resolution has brought about a demand for novel methods of increasing this tool’s sensitivity and further its miniaturization. In this paper, we present our studies on the optical control of the atomic vapor density in antirelaxation coated cells for application in optical magnetometry. A special system for homogeneous illumination of the cell walls is used to increase the atomic density, avoid the deposition of alkali atoms on the cell walls and reduce the coating deterioration.