Long-term deformation at room temperature observed in fused silica

Year: 2010

Authors: Vannoni M., Sordini A., Molesini G.

Autors Affiliation: CNR – Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy

Abstract: Cases of long-term deformation of fused silica flats are reported. The phenomenon is detected at the scale of the nanometer, and exhibits a time constant of the order of 9 years. The observed deformation appears related to gravity and constraints, but a change of physical properties locally resulting in non-homothetic behavior is also hypothesized. (C) 2010 Optical Society of America

Journal/Review: OPTICS EXPRESS

Volume: 18 (5)      Pages from: 5114  to: 5123

KeyWords: Deformation; Silica, Long-term deformation; Room temperature; Time constants; Fused silica
DOI: 10.1364/OE.18.005114

Citations: 16
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