33 citations · 34 across the 2 of their papers we have counts for
2 papers
physics.optics2010★ 33 cited
Energy transfer up-conversion in Tm3+-doped silica fiber
David A. Simpson, Gregory W. Baxter, Stephen F. Collins +4
A study of the mechanisms responsible for the infra-red to near infra-red up-conversion in Tm3+-doped silica fibers is presented. Upconversion luminescence was observed from the 3H…
physics.optics2008★ 1 cited
Visible and near infra-red up-conversion in Tm3+/Yb3+ co-doped silica fibres under 980 nm excitation
David A. Simpson, Keith W. E. Gibbs, Stephen F. Collins +5
The spectroscopic properties of Tm3+/Yb3+ co-doped silica fibers under excitation at 980 nm are reported. Three distinct up-conversion fluorescence bands were observed in the visib…