title: Experimental demonstration of internal wavelength conversion in the magnesium atomic filter.
abstract: We describe what is to our knowledge the first experimental demonstration of internal wavelength conversion in the metastable Mg atomic filter. The filter operates at a Fraunhofer line, thereby offering intrinsic solar background rejection. Incoming green Fraunhofer photons (518 nm) are absorbed by metastable Mg atoms in an oven cell and are converted into UV (384-nm) photons. We observed a green-to-UV conversion efficiency of greater than 50%.
authors.forename: Y C
authors.initials: YC
authors.lastname: Chan
authors.forename: M D
authors.initials: MD
authors.lastname: Tabat
authors.forename: J A
authors.initials: JA
authors.lastname: Gelbwachs