https://doi.org/10.1051/epjconf/202328705034
Nanocrystalline (Ho0.03Y0.97)2Hf2O7 luminophore for near- and mid-infrared
1 Institute of Photonics and Electronics of the Czech Academy of Sciences, Chaberská 1014/57, 182 00 Praha, Czech Republic
2 Department of Inorganic Chemistry, UCT Prague, Technická 5, 166 28 Praha, Czech Republic
* Corresponding author: varak@ufe.cz
Published online: 18 October 2023
In recent years, a great scientific effort was dedicated to extending the operating range of lasers and amplifiers beyond the conventional 1.5 – 2.0 μm. Lasers operating in the mid-infrared range 2 – 5 μm find various applications as LIDARs, sensors, medicine, etc. However, the commonly used silica glass is unsuitable for emission above 2 μm due to the high phonon energy of the silica lattice, which completely quenches emission at longer wavelengths. The materials based on crystalline structure are perspective low-phonon materials for laser operation in the mid-infrared rage. In this contribution, we present the preparation and properties of a novel laser-active material based on holmium-doped yttrium-hafniate (Ho0.03Y0.97)2Hf2O7. The emission around 3 μm is successfully demonstrated.
© The Authors, published by EDP Sciences, 2023
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