Abstract
To investigate the temperature profiles on laser heated polymer films, we track the thermal radiation with 1 μs time and 1 μm spatial resolution. The resulting two-dimensional temperature graphs are compared to finite element simulations in order to understand the heat conversion and flow. The temperature measurement setup consists of a NIR laser and an optical detection system, which includes high performance optics and a microsecond gated camera, equipped with several interference filters. In this way the thermal radiation is detected in the visible range with spectral resolution. Fitting the spectrum with Planck’s law, two-dimensional micrographs of the temperature distribution are obtained. For polystyrene surfaces we were able to analyze the heating and the ablation behavior. Good agreement was found between experimental results and finite element simulations, when ablation is limited to a few tens of nanometers of the film thickness. Ablation of polystyrene starts at 150°C, 50 K above the glass transition temperature. We suggest a photomechanical ablation mechanism at that threshold fluence. For ablation at higher fluence and peak temperature, experiments indicate a thermal decomposition reaction. The temperature range of spinodal decomposition is not reached and can in our case be ruled out as ablation mechanism.
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References
E.D. Hare, J. Franken, D.D. Dlott, J. Appl. Phys. 77, 5950–5960 (1995)
X.N. Wen, W.A. Tolbert, D.D. Dlott, J. Chem. Phys. 99, 4140–4151 (1993)
S. Kuper, J. Brannon, K. Brannon, Appl. Phys. A, Mater. Sci. Process. 56, 43–50 (1993)
S.L. Johnson, D.M. Bubb, R.F. Haglund Jr., Appl. Phys. A, Mater. Sci. Process. 96, 627–635 (2009)
W.A. Tolbert, I.Y.S. Lee, M.M. Doxtader, E.W. Ellis, D.D. Dlott, J. Imaging Sci. Technol. 37, 411–422 (1993)
T. Lippert, Adv. Polym. Sci. 168, 51–246 (2004)
I. Itzkan, D. Albagli, M.L. Dark, L.T. Perelman, C. von Rosenberg, M.S. Feld, Proc. Natl. Acad. Sci. 92, 1960–1964 (1995)
S.G. Koulikov, D.D. Dlott, J. Photochem. Photobiol. A, Chem. 145, 183–194 (2001)
D.P. Banks, K. Kaur, R. Gazia, R. Fardel, M. Nagel, T. Lippert, R.W. Eason, Europhys. Lett. 83, 38003 (2008)
R. Fardel, M. Nagel, T. Lippert, F. Nüesch, A. Wokaun, B.S. Luk’yanchuk, Appl. Phys. A, Mater. Sci. Process. 90, 661–667 (2008)
A.N. Magunov, Instrum. Exp. Tech. 52, 451–472 (2009)
V.A. Kop’ev, I.A. Kossyi, A.N. Magunov, N.M. Tarasova, Instrum. Exp. Tech. 49, 573–576 (2006)
R.S. Kappes, C. Li, H.-J. Butt, J.S. Gutmann, New J. Phys. 12, 083011 (2010)
Y. Sakakibara, I. Yamada, S. Hiraoka, T. Aragaki, J. Chem. Eng. Jpn. 23, 499–502 (1990)
E. Marti, E. Kaisersberger, E. Moukhina, J. Therm. Anal. Calorim. 85, 505–525 (2006)
R.D. Lide, CRC Handbook of Chemistry and Physics, 87th edn. (CRC Press, Boca Raton, 2006). Chap. 12, p. 207
J. Huang, P.K. Gupta, J. Non-Cryst. Solids 139, 239–247 (1992)
Y. Avlasevich, C. Li, K. Müllen, J. Mater. Chem. 20, 3814–3826 (2010)
I.Y.S. Lee, W.A. Tolbert, D.D. Dlott, M.M. Doxtader, D.M. Foley, R.D. Arnold, E.W. Ellis, J. Imaging Sci. Technol. 36, 180–187 (1992)
J. Brandrup, E.H. Immergut, E.A. Grulke, A. Akihiro, R.D. Bloch, Polymer Handbook, 4th edn. (Wiley, New York, 2005). V/91-96
R. Greiner, F.R. Schwarzl, Rheol. Acta 23, 378–395 (1984)
Acknowledgements
The authors thank Agfa-Gevaert N.V. for financial support and helpful discussions. Furthermore thanks go to the staff of the Max Planck Institute for Polymer Research, especially to Andreas Best for technical support.
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Kappes, R.S., Schönfeld, F., Li, C. et al. Temperature analysis of laser heated polymers on microsecond time scales. Appl. Phys. A 106, 791–801 (2012). https://doi.org/10.1007/s00339-011-6715-3
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DOI: https://doi.org/10.1007/s00339-011-6715-3