The temperature dependence of pressure broadening of ~2P_(1/2)-~2P_(3/2) transition of atomic iodine

摘要

Diode laser spectroscopy was used to measure the temperature dependence of pressure broadening of the ~2P_(1/2)-~2P_(3/2) transition of atomic iodine in the temperature range 220°― 347°K. It is shown that the pressure broadening width in the oxygen-nitrogen gas mixture can be expressed as (300/T)~γ, where γ=0.87+-0.13.