Radiation-induced defects and effects in germanate and tellurite glasses

Mikko Hongisto (1) , Alexander Veber (1) , Yannick Petit (2) , Thierry Cardinal (2) , Sylvain Danto (2) , Veronique Jubera (2) , Laëticia Petit (1)

1 University of Tampere [Finland]
2 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux

This review focuses on the radiation-induced changes in germanate and tellurite glasses. These glasses have been of great interest due to their remarkable potential for photonics, in terms of extended transmission window in the mid-infrared, ability of rare-earth loading suitable with a laser, and amplification in the near- and mid-infrared or high nonlinear optical properties. Here, we summarize information about possible radiation-induced defects, mechanisms of their formation, and the influence of the glass composition on this process. Special attention is paid to laser-induced structural modification of these glasses, including possible mechanisms of the laser-glass interaction, laser-induced crystallization, and waveguide writing. It is shown that these methods can be used for photostructuring of the glass and have great potential for practical applications.

Mots clés: germanate glass; tellurite glass; radiation treatment; defects; structuring

Domaines: Matériaux; Radiochimie

Mikko Hongisto, Alexander Veber, Yannick Petit, Thierry Cardinal, Sylvain Danto, et al.. Radiation-induced defects and effects in germanate and tellurite glasses. Materials, 2020, 13 (17), pp.3846. ⟨10.3390/ma13173846⟩. ⟨hal-02930012⟩