GAS CELL AND MAGNETIC FIELD MEASURING APPARATUS

摘要

A magnetic field measuring apparatus comprises a gas cell, an irradiation unit and a detection unit. The gas cell includes walls forming a closed space, a carbon film on the inner surfaces of the walls, and atoms that are enclosed in the closed space. The irradiation unit applies radiation to the gas cell so as to excite the atoms. The detection unit detects a rotation angle of a polarization plane of the radiation transmitted through the gas cell.

主权项

1. A magnetic field measuring apparatus comprising:
a gas cell including:
walls forming a closed space, the walls having inner and outer surfaces;a carbon film on the inner surfaces of the walls; andatoms enclosed in the closed space; an irradiation unit optically upstream of the gas cell and configured to apply radiation to the gas cell so as to excite the atoms; and a detection unit optically downstream of the gas cell and configured to detect a rotation angle of a polarization plane of the radiation transmitted through the gas cell.