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Excimer laser-induced diamond graphitization for high-energy nuclear applications

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Abstract

In this work, we have studied the structure and the morphology of a graphite layer induced on the surface of a polycrystalline thermal grade CVD diamond by focusing a pulsed excimer laser operating at KrF (wavelength 248 nm) and ArF (wavelength 193 nm) mixtures. By micro-Raman and photoluminescence spectroscopies, as well as scanning electron microscopy, we reported the synthesis of a turbostratic t-graphite layer after irradiation with ArF laser. By contrast, irradiating with a KrF laser beam, we obtained a disordered graphite layer with 10 laser shots, while 200 consecutive laser pulses resulted in target ablation.

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Acknowledgments

The support of INFN Technology and Interdisciplinary National Scientific Committee (CSN5) through the experiment DIAPIX (DIAmondPIXel) is acknowledged.

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Authors and Affiliations

  1. Department of Mathematics and Physics, “E. De Giorgi”, University of Salento, Via Arnesano, 73100, Lecce, Italy

    E. Alemanno, A. P. Caricato, M. Martino & S. Spagnolo

  2. National Institute for Nuclear Physics (INFN), Via Monteroni, 73100, Lecce, Italy

    E. Alemanno, A. P. Caricato, G. Chiodini, M. Martino, S. Spagnolo & R. Perrino

  3. Department of Energy, Center for Nano Engineered Materials and Surfaces (NEMAS), Politecnico di Milano, Milan, Italy

    P. M. Ossi

Authors
  1. E. Alemanno
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  2. A. P. Caricato
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  3. G. Chiodini
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  4. M. Martino
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  5. P. M. Ossi
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  6. S. Spagnolo
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  7. R. Perrino
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Correspondence to E. Alemanno.

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Alemanno, E., Caricato, A.P., Chiodini, G. et al. Excimer laser-induced diamond graphitization for high-energy nuclear applications. Appl. Phys. B 113, 373–378 (2013). https://doi.org/10.1007/s00340-013-5487-1

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  • DOI: https://doi.org/10.1007/s00340-013-5487-1

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