Dual-phase Er:Y2O3/MgO nanocomposites for mid-Infrared solid state lasers

Zackery D. Fleischman; Victoria L. Blair; Nicholas Ku; Larry D. Merkle

doi:10.1117/12.2311470

4 May 2018 Dual-phase Er:Y₂O₃/MgO nanocomposites for mid-Infrared solid state lasers

Zackery D. Fleischman, Victoria L. Blair, Nicholas Ku, Larry D. Merkle

Proceedings Volume 10637, Laser Technology for Defense and Security XIV; 106370Z (2018) https://doi.org/10.1117/12.2311470
Event: SPIE Defense + Security, 2018, Orlando, FL, United States

Abstract

In the pursuit of efficient mid-Infrared laser host materials, we developed a dual-phase nanocomposite composed of a majority species (MgO) which provides high thermal conductivity and a rare earth doped minority species (Er:Y₂O₃) featuring a low maximum-phonon energy. This material was prepared using a co-precipitation method where both components are synthesized together for intimate mixing on the smallest scale. Preparation parameters were tuned to achieve a small crystallite size in order to limit scattering at the grain boundaries between the two different species. Optical characterization of the prepared materials included percent transmission (%T) as well as Raman measurements and Er fluorescence spectroscopy. Once suitable transmissivity was achieved, %T results were compared to Mie scattering calculations to gauge the average grain size in the material; and we determined the smallest average Y₂O₃ grain sizes achieved in our materials so far was 80 nm in diameter.

Conference Presentation

Citation Download Citation

Zackery D. Fleischman, Victoria L. Blair, Nicholas Ku, and Larry D. Merkle "Dual-phase Er:Y₂O₃/MgO nanocomposites for mid-Infrared solid state lasers", Proc. SPIE 10637, Laser Technology for Defense and Security XIV, 106370Z (4 May 2018); https://doi.org/10.1117/12.2311470

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