Polarized alkali-metal vapor with minute-long transverse spin-relaxation time.
We demonstrate lifetimes of Zeeman populations and coherences in excess of 60 sec in alkali-metal vapor cells with inner walls coated with an alkene material. This represents 2 orders of magnitude improvement over the best paraffin coatings. We explore the temperature dependence of cells coated with this material and investigate spin-exchange relaxation-free magnetometry in a room-temperature environment, a regime previously inaccessible with conventional coating materials.
Balabas
M V
MV
S. I. Vavilov State Optical Institute, St. Petersburg, 199034 Russia.
Karaulanov
T
T
Ledbetter
M P
MP
Budker
D
D