A FAST EFFICIENT PASSIVE CESIUM ARF

The properties of a passive cesium ARF (atomic resonance filter) are d etermined predominantly by the physical processes of absorption, emiss ion and internal energy conversion in the cesium vapor. A fast efficie nt passive cesium ARF at 455 nm and 459 nm is demonstrated by the meth od of mixing molecular gas in the cesium vapor. The nominal maximum in formation rate of the passive cesium ARF, which is an important parame ter for laser communication applications, is estimated by the fwhm (fu ll width at half maximum) of the time-resolved fluorescence spectrum o f its output emission at 852 nm.