Thermal stability of nanogratings in oxide glasses: a route to overcome silica

Maxime Cavillon; Qiong Xie; Imane Ktafi; Jing Kong; Julien Ari; Bertrand Poumellec; Yasuhiko Shimotsuma; Thomas W. Hawkins; John Ballato; Matthieu Lancry

doi:10.1117/12.2691346

12 March 2024 Thermal stability of nanogratings in oxide glasses: a route to overcome silica

Maxime Cavillon, Qiong Xie, Imane Ktafi, Jing Kong, Julien Ari, Bertrand Poumellec, Yasuhiko Shimotsuma, Thomas W. Hawkins, John Ballato, Matthieu Lancry

Author Affiliations +

Proceedings Volume 12875, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXIV; 128750C (2024) https://doi.org/10.1117/12.2691346
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

This paper provides an overview of the thermal stability of volume nanogratings (NGs) inscribed in more than 20 laboratory and commercial oxide glasses using femtosecond laser pulses. The role of glass composition and its viscosity-temperature dependence are particularly investigated. Other parameters, such as nanostructure morphology (e.g., porosity size) can play a role in it. Although it has become established that high viscosity glasses typically yield improved thermal stability, recent results highlight deviations from this trend. This is particularly pronounced in low SiO₂ containing glasses with large Al₂O₃ content (typ. > 50 mol%), where their NGs thermal stability is comparatively higher than what is known for pure silica, which may prove useful for optical devices operating in extreme environments.

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Citation Download Citation

Maxime Cavillon, Qiong Xie, Imane Ktafi, Jing Kong, Julien Ari, Bertrand Poumellec, Yasuhiko Shimotsuma, Thomas W. Hawkins, John Ballato, and Matthieu Lancry "Thermal stability of nanogratings in oxide glasses: a route to overcome silica", Proc. SPIE 12875, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXIV, 128750C (12 March 2024); https://doi.org/10.1117/12.2691346

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