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Laser irradiation studies of Te-Se-Br glasses

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Abstract

We have studied the effect of laser irradiation on Te-Se-Br thin films. The major effect has been found to be dominated by changes in composition which include different morphologies. These changes are analysed by quantitative transmission electron microscopy (TEM) and scanning electron microscopy (SEM) as well as real time optical reflectivity. The measured losses of Br and Se are reasonable in view of the temperatures obtained from heat flow calculations for different laser pulse length and laser power conditions. When crystallization occurs, we have been able to establish that it starts with surface filamentary growth which exhibits fractal network formation. With higher laser energy, the filaments tend to coalesce to form metallic three dimensional crystals.

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Author notes

  1. J. L. Adam

    Present address: Laboratoire de Chimie Minérale D, Unité Associée au C.N.R.S. No. 254, Université de Rennes I, Avenue du Général Leclerc, 35042, Rennes Cedex, France

Authors and Affiliations

  1. IBM Research Division, Almaden Research Center, 650 Harry Road, 95120-6099, San Jose, CA, USA

    J. L. Adam, C. Ortiz & J. R. Salem

  2. Laboratoire de Chimie Minérale D, Unité Associée au C.N.R.S. No. 254, Université de Rennes I, Avenue du Général Leclerc, 35042, Rennes Cedex, France

    X. H. Zhang

Authors
  1. J. L. Adam
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  2. C. Ortiz
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  3. J. R. Salem
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  4. X. H. Zhang
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Adam, J.L., Ortiz, C., Salem, J.R. et al. Laser irradiation studies of Te-Se-Br glasses. J Mater Sci 26, 2900–2906 (1991). https://doi.org/10.1007/BF01124819

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  • DOI: https://doi.org/10.1007/BF01124819

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