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15 June 2023 Exploring the mid-IR potential of Dy3+ doped low-phonon crystals and glasses
Zackery D. Fleischman, Ei Ei Brown, Mark Dubinskii, Jason McKay, Uwe Hömmerich, Witold Palosz, Sudhir Trivedi
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Proceedings Volume PC12515, Laser Technology for Defense and Security XVIII; PC1251506 (2023) https://doi.org/10.1117/12.2666002
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States
Abstract
With the goal of developing new mid-IR laser sources, Rare-earth doped low-phonon crystals and sulfide-based chalcogenide glasses are being explored. Low maximum phonon energy materials are necessary to minimize competing non-radiative decay processes such as multi-phonon relaxation (MPR). This work presents the results of a comprehensive mid-IR spectroscopic study on Dy3+ doped sulfide-based chalcogenide glasses, as well as comparative results from similarly doped chloride and fluoride crystals. Spectroscopic results will focus on absorption, fluorescence, and decay characteristics. From these measurements, laser relevant parameters such as cross sections and radiative lifetimes are calculated.
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Zackery D. Fleischman, Ei Ei Brown, Mark Dubinskii, Jason McKay, Uwe Hömmerich, Witold Palosz, and Sudhir Trivedi "Exploring the mid-IR potential of Dy3+ doped low-phonon crystals and glasses", Proc. SPIE PC12515, Laser Technology for Defense and Security XVIII, PC1251506 (15 June 2023); https://doi.org/10.1117/12.2666002
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KEYWORDS
Mid-IR
Crystals
Chalcogenide glass
Glasses
Phonons
Wind energy
Spectroscopy
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