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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/190964
- Title
- Laser-induced structural changes in pure GeO2 glasses
- Author(s)
- Bressel, Lena; de Ligny, Dominique; Sonneville, Camille; Martinez-Andrieux, Valerie; Juodkazis, Saulius
- Abstract
- We report on the characterization of structural modifications created by micro-explosions at the beam waist of a tightly focused femtosecond laser pulse inside of GeO2 glass. Micro-Raman scattering revealed the presence of structurally strongly modified regions at and around the irradiated sites. For separations of 5 μm between adjacent irradiated sites structural modifications due to a pressure increase are observed, whereas smaller spacings of 2 μm lead to thermal effects and crystallization. The mechanisms and the interplay of pressure and temperature effects are discussed.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Micro-Photonics
- Source
- Journal of Non-Crystalline Solids: proceedings of the 11th Conference on the Structure of Non-Crystalline Materials (NCM11), Paris, France, 28 June - 02 July 2010, Vol. 357, no. 14 (Jul 2011), pp. 2637-2640
- Publication year
- 2011
- FOR Code(s)
- 0912 Materials Engineering
- Keyword(s)
- Extreme conditions; Glass; Laser nano-fabrication; Phase transitions; Shock waves
- Publisher
- Elsevier
- ISSN
- 0022-3093
- Publisher URL
- http://dx.doi.org/10.1016/j.jnoncrysol.2011.03.014
- Copyright
- Copyright © 2011 Elsevier B.V. The accepted manuscript will be reproduced 24 months after publication (July 2013) in accordance with the copyright policy of the publisher.
- Additional information
- The authors acknowledge support from the CNRS, CECOMO and LLP-Leonardo da Vinci.
- Peer reviewed
