Absorption spectroscopy on Hg+and excited Hg in Hghyphen;Ar discharges

摘要

We describe an absorption spectroscopy experiment at 194 nm on Hg+, groundhyphen;state atomic mercury ions, and at visible wavelengths on Hgast;, excited 63Pomercury atoms in Hghyphen;Ar discharges. This experiment is used to map the absolute density of Hg+and Hgast; in the cathode region of Hghyphen;Ar discharge lamps operated in the hothyphen;cathode mode.