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Article Dans Une Revue Materials Année : 2024

Impact of Glass Free Volume on Femtosecond Laser-Written Nanograting Formation in Silica Glass

Nadezhda Shchedrina
Maxime Cavillon
Julien Ari
Matthieu Lancry

Résumé

In this study, we investigate the effects of densification through high pressure and temperature (up to 5 GPa, 1000 °C) in the making of nanogratings in pure silica glass, inscribed with femtosecond laser. The latter were monitored through retardance measurements using polarized optical microscopy, and their internal structure was observed under scanning electron microscopy. We reveal the difficulty in making nanogratings in densified silica glasses. Based on this observation, we propose that free volume may be a key precursor to initiate nanograting formation.
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Dates et versions

hal-04492401 , version 1 (06-03-2024)

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Nadezhda Shchedrina, Maxime Cavillon, Julien Ari, Nadège Ollier, Matthieu Lancry. Impact of Glass Free Volume on Femtosecond Laser-Written Nanograting Formation in Silica Glass. Materials, 2024, 17 (2), pp.502. ⟨10.3390/ma17020502⟩. ⟨hal-04492401⟩
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