J. Wells

We utilize the optical transitions of Yb $^{2 +}$ excited by an ultraviolet optical parametric amplifier to probe electron trap liberation in MgF $_{2}$ via the observation of a photo…

cond-mat.mtrl-sci2011★ 13 cited

Impurity-trapped excitons and electron traps in CaF $_{2}$ :Yb $^{2 +}$ and SrF $_{2}$ :Yb $^{2 +}$ probed by transient photoluminescence enhancement

P. S. Senanayake, J. P. R. Wells, M. F. Reid +3

CaF $_{2}$ :Yb $^{2 +}$ and SrF $_{2}$ :Yb $^{2 +}$ crystals have been investigated by a two-color UV + IR transient photoluminescence enhancement technique. The enhancement gives information…

cond-mat.mtrl-sci2011★ 22 cited

Transient photoluminescence enhancement as a probe of the structure of impurity-trapped excitons in CaF $_{2}$ :Yb $^{2 +}$

Michael F. Reid, Pubudu S. Senanayake, Jon-Paul R. Wells +5

We demonstrate a direct measurement of the energy levels of impurity-trapped excitons in CaF $_{2}$ :Yb $^{2 +}$ . The radically different radiative decay rates of the lowest exciton stat…

The observation of electron trap liberation in MgF2​ doped with Yb2+ using a two-color excitation experiment

Impurity-trapped excitons and electron traps in CaF2​:Yb2+ and SrF2​:Yb2+ probed by transient photoluminescence enhancement

Transient photoluminescence enhancement as a probe of the structure of impurity-trapped excitons in CaF2​:Yb2+

The observation of electron trap liberation in MgF $_{2}$ doped with Yb $^{2 +}$ using a two-color excitation experiment

Impurity-trapped excitons and electron traps in CaF $_{2}$ :Yb $^{2 +}$ and SrF $_{2}$ :Yb $^{2 +}$ probed by transient photoluminescence enhancement

Transient photoluminescence enhancement as a probe of the structure of impurity-trapped excitons in CaF $_{2}$ :Yb $^{2 +}$