Pulsed laser intensity dependence of crater formation and light reflection in the UDMA-TEGDMA copolymer nanocomposite, doped with resonant plasmonic gold nanorods

• DOI: 10.48550/arxiv.2402.18138
• Publication Date: 2024-02-28
• Authors: Ágnes Nagyné Szokol; Judit Kámán; R. Holomb; M. Aladi; M. Á. Kedves; B. Ráczkevi; Péter Rácz; Attila Bonyár; Alexandra Borók; Shereen Zangana; Melinda Szalóki; I. Papp; Gábor Galbács; Tamás S. Bíró; L. P. Csernai; N. Kroó; M. Vereš; NAPLIFE Collabora...
• Keywords: Nanorod; Reflection

Plasmonic nanoparticles embedded into a solid matrix could play crucial role in laser-matter interactions. In this study, excess energy creation was observed during the single-shot irradiation of polymer containing plasmonic gold nanorods, resonant to laser wavelength, with high intensity femtosecond pulse. This effect manifested 7-fold rise crater volume for 1.7-fold increase intensity, and absent pure without doping. It occurred at intensities > 1.5 x 1017 W/cm2, being vanishing threshold plasma mirror formation, resulting more than 80% amount light entering target. found be critical nanoantennas tuned wavelength on formation.