J. R. Hector

Visible upconversion in rare-earth doped gallium lanthanum sulphide based glasses

David N. Payne, Daniel W. Hewak, T. Schweizer, 1998 .

Optical measurement of narrow band rare-earth 4f levels with energies greater than the bandgap of the host

David N. Payne, Günter Huber, Daniel W. Hewak, 1998 .

Infrared emission and ion–ion interactions in thulium- and terbium-doped gallium lanthanum sulfide glass

David N. Payne, Daniel W. Hewak, T. Schweizer, 1999 .

Halide-modified Ga–La sulfide glasses with improved fiber-drawing and optical properties for Pr3+-doped fiber amplifiers at 1.3 μm

David N. Payne, Daniel W. Hewak, D. Brady, 1997 .

Infrared emission from holmium doped gallium lanthanum sulphide glass

David N. Payne, Daniel W. Hewak, T. Schweizer, 1999 .