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1 April 2022 Comparative mid-IR emission study of holmium doped low-phonon fluoride and chloride crystals
Ei E. Brown, Zackery D. Fleischman, Uwe H. Hömmerich, Sudhir B. Trivedi, Mark Dubinskii
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Proceedings Volume PC11997, Optical Components and Materials XIX; PC119970A (2022) https://doi.org/10.1117/12.2610206
Event: SPIE OPTO, 2022, San Francisco, California, United States
Abstract
Laser hosts with low maximum phonon energies decrease multiphonon-relaxation (MPR) rates, which enables rare earth emission transitions in the mid-IR region. In this work, a comparative study of mid-IR (3-5 µm) spectroscopic properties on Ho3+ ions doped in various low-phonon fluoride (LaF3, BaF2, NaYF4) and chloride (KPb2Cl5, CsCdCl3, CsPbCl3) based crystals were explored. Experimental results of the mid-IR emission properties using both steady-state and time-resolved fluorescence spectroscopy will be presented. Several laser relevant spectroscopic parameters for the 3.9 µm mid-IR emission of all the studied crystals were determined and compared.
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Ei E. Brown, Zackery D. Fleischman, Uwe H. Hömmerich, Sudhir B. Trivedi, and Mark Dubinskii "Comparative mid-IR emission study of holmium doped low-phonon fluoride and chloride crystals", Proc. SPIE PC11997, Optical Components and Materials XIX, PC119970A (1 April 2022); https://doi.org/10.1117/12.2610206
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KEYWORDS
Crystals
Mid-IR
Crystallography
Holmium
Ions
Laser crystals
Phonons
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