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

Author Affiliations +

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.

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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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