Presentation + Paper
15 February 2018 Re-absorption and nonradiative energy transfer in vibronic laser gain media
Jonathan W. Evans, Thomas R. Harris, Eric J. Turner, Martin M. Kimani, J. Matthew Mann, Ronald W. Stites, Gary Cook, Kenneth L. Schepler
Author Affiliations +
Abstract
Fe:ZnSe and other transition metals have broad upper and lower energy manifolds which give rise to broad absorption and fluorescence bands in the mid-IR spectral region. Energy transfer between Fe2+ ions via re-absorption of fluorescence (due to the spectral overlap of these bands) and phonon-assisted energy transfer (due to the lattice dynamics of ZnSe) becomes more probable with increasing Fe2+ concentration. Here we treat these processes as additional terms in the rate equations which govern the spontaneous decay of the Fe2+ ion. This treatment gives insight into anomalous behavior seen in the thermal lifetime of the Fe:ZnSe system. We also apply the model to other transition metal doped II-VI materials.
Conference Presentation
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jonathan W. Evans, Thomas R. Harris, Eric J. Turner, Martin M. Kimani, J. Matthew Mann, Ronald W. Stites, Gary Cook, and Kenneth L. Schepler "Re-absorption and nonradiative energy transfer in vibronic laser gain media", Proc. SPIE 10511, Solid State Lasers XXVII: Technology and Devices, 105110I (15 February 2018); https://doi.org/10.1117/12.2290822
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CITATIONS
Cited by 3 scholarly publications.
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KEYWORDS
Luminescence

Energy transfer

Systems modeling

Transition metals

Crystals

Mid-IR

Infrared lasers

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