An oscillator circuit to produce a radio-frequency discharge and application to metastable helium saturated absorption spectroscopy
arXiv:1202.3968 · doi:10.1063/1.4705999
Abstract
We present an rf gas discharge apparatus which provides an atomic frequency reference for laser manipulation of metastable helium. We discuss the biasing and operation of a Colpitts oscillator in which the discharge coil is part of the oscillator circuit. Radiofrequency radiation is reduced by placing the entire oscillator in a metal enclosure.
9 pages, 5 figures