Amira Guediche

(she/her)

Portrait of Amira Guediche
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  • Title
    Postdoctoral Researcher
  • Email
    guediche1@llnl.gov
  • Phone
    (925) 423-2651
  • Organization
    PLS-MSD-MATERIALS SCIENCE DIVISION

I am currently involved in the development of dielectric thin films and optical coatings, overseeing the process from design to deposition. We employ ion beam sputtering technique to fabricate advanced dielectric films, focusing our research on investigating optical damage mechanisms to enhance laser damage threshold. At present, I am engaged in a project that studies optical damage precursors in hafnia films across a range of laser wavelengths.

Research interests

  • Dielectric thin films
  • Ion beam sputtering technique
  • Laser damage initiation and growth in optical materials
  • Optical properties of glasses
  • Dynamic fracture behavior in glasses by spallation
  • Thin film characterization (spectrophotometry, ellipsometry, picosecond acoustic technique, surface acoustic wave sensor, scanning electron microscopy, nanoindentation)
  • Laser/matter interaction
  • Instrumentation & automation (Labview)
  • Data analysis (Matlab, Python)

Ph.D., Physics & Material Science, University of Tours, CEA, France, 2023

B.A., Philosophy, Paris Nanterre University, France, 2020

M.S., Plasma Fusion Science, Physics, Aix-Marseille University, France, 2018

B.S./M.S., Mechanical Engineering & Material Science, Ecole Nationale Supérieure d’Arts et Métiers ParisTech, France, 2018

B.S., Physics, Paris Sciences et Lettres University, France, 2015

Selected publications

 

  1. O. Guillot, A. Guediche, M. Lafarie, A. Moiny, T. Brockhouse, H. Piombini, “Transparent Films Thickness Mapping Highlighting the Viscosity Effect of Elastic Layers Made by Sol–Gel Process with an In-House Ellipsometer” Coatings 13(3) 2023; https://doi.org/10.3390/coatings13030633
  2. J. Avice, G. Brotons, P. Ruello, G. Vaudel, A. Guediche, H. Piombini, “Vapor Phase Ammonia Curing to Improve the Mechanical Properties of Antireflection Optical Coatings Designed for Power Laser Optics” Gels 9(2) (2023)
    https://doi.org/10.3390/gels9020140
  3. A. Guediche, F. Compoint, C. Boscher, C. Stelian, H. Piombini, “Indentation hardness and scratch tests for thin layers manufactured by sol-gel process” Thin Solid Film 724 (2021)
    https://doi.org/10.1016/j.tsf.2021.138618
  4. E. D. Filippov, S. S. Makarov., K. F. Burdonov, W. Yao, G. Revet, J. Béard, S. Bolaños, S. N. Chen, A. Guediche, J. Hare, D. Romanovsky, I. Y. Skobelev, M. Starodubtsev, A. Ciardi, S. A. Pikuz, J. Fuchs,” Enhanced X-ray emission arising from laser-plasma confinement by a strong transverse magnetic field” Scientific Reports 11, 8180 (2021)
    https://doi.org/10.1038/s41598-021-87651-8
  5. H. Piombini, A. Guediche, G. Dammame, “Absorption measurements of transparent materials for a visible power laser” Optics Letters 45, 519-522 (2020)
  6. H. Piombini, Amira Guediche, D. Picart, G. Dammame, “Absorption measurement of layers or materials: How to calibrate?”  Results in Physics 14 (2019)
    https://doi.org/10.1016/j.rinp.2019.102314

 

 

Social media

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