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41. Exploring Structure-Sensitive Factors Relevant to Cryogenic Laser Operation in Oxide Crystals Doped with Er 3+ Ions.

Author

Ryba-Romanowski, Witold, Lisiecki, Radoslaw, Komar, Jaroslaw, Macalik, Boguslaw, and Berkowski, Marek

Subjects
*OPTICAL pumping, *CRYSTALS, *LIGHT absorption, *LASERS, *ABSORPTION spectra, *LUTETIUM compounds, *GADOLINIUM
Abstract

Crystals of Gd3Al2.5Ga2.5O12:Er3+, (Lu0.3Gd0.7)2SiO5:Er3+ and LiNbO3:Er3+ compounds differing in origin and the nature of their inherent structural disorder were crystalized. Optical absorption and luminescence spectra for transitions between the 4I15/2 and the 4I13/2 multiplets of Er3+ ions for the crystal samples were recorded versus temperatures in the region of 80–300 K. Gathered data were analyzed thoroughly providing the in-depth knowledge of the effects of temperature on intensities, wavelengths and bandwidths of Er3+ transitions. The information acquired together with the knowledge of significant structural dissimilarities of the host crystals chosen made it possible to propose an interpretation of the impact of a structural disorder in Er3+-doped crystals on their spectroscopic properties, and to determine their lasing ability at cryogenic temperatures upon resonant (in-band) optical pumping. [ABSTRACT FROM AUTHOR]

Published
2023
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