Effect of Ga³⁺/Sc³⁺ on Yb³⁺ emission in mixed YAG at cryogenic temperatures ODBORNÝ ČLÁNEK | Optical Materials: X

Experti na Vývoj pokročilých laserů z Centra HiLASE přispěli k nedávné publikaci v odborném časopise Optical Materials: X s názvem Effect of Ga³⁺/Sc³⁺ on Yb³⁺ emission in mixed YAG at cryogenic temperatures.

Gratulujeme HiLASIÁNŮM, které najdete na seznamu autorů: Venkatesan Jambunathan, Great Chayran, Martin Smrž and Tomáš Mocek! Spolupracovali s vědeckým týmem z italského Institute of Science, Technology and Sustainability for Ceramics a Institute for Single Crystals of NAS of Ukraine: Jan Hostaša, Dariia Chernomorets, Andreana Piancastelli, Chiara Zanelli, Francesco Picelli, Valentina Biasini, and Laura Esposito.

ABSTRACT (en)

We studied the effect of Ga³⁺and Sc³⁺ on Yb:YAG emission at cryogenic temperatures on three different mixed garnets namely Yb:YGAG, Yb:YSAG and Yb:YSGAG. The compositional tuning of these mixed garnets was achieved by preparing ceramic pellets by solid state reaction with different concentration of Ga³⁺, or Sc³⁺, or both. The incorporation of Sc³⁺ in Yb:YAG leads only to a limited spectral broadening. On the other hand, the incorporation of either Ga³⁺ or both Ga³⁺ and Sc³⁺ results in a significant spectral broadening. In the latter case, this inhomogeneous broadening is attributed to the mixed occupancy of both Ga³⁺ and Sc³⁺ in octahedral and tetragonal sites in the crystal lattice leading to a significant distortion in the structure.

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