Particle modeling of nanoscale ablation of resonant dielectric microstructures by Intense mid-IR laser-driven explosions

Simin Zhang; Joseph Smith; Maxim Shcherbakov; Giovanni Sartorello; Michael Tripepi; Gennady Shvets; Enam Chowdhury

doi:10.1117/12.2685251

24 November 2023 Particle modeling of nanoscale ablation of resonant dielectric microstructures by Intense mid-IR laser-driven explosions

Simin Zhang, Joseph Smith, Maxim Shcherbakov, Giovanni Sartorello, Michael Tripepi, Gennady Shvets, Enam Chowdhury

Author Affiliations +

Proceedings Volume PC12726, Laser-Induced Damage in Optical Materials 2023; PC127260O (2023) https://doi.org/10.1117/12.2685251
Event: SPIE Laser Damage, 2023, Dublin/Livermore, California, United States

Abstract

In our recent experiment, it is discovered that the interaction of resonant metasurfaces and mid-infrared femtosecond laser pulses can realize damage patterns that overcome this limitation, and the geometry of the trench can be controlled by the pulse intensity, polarization, and the total pulse number. In this study, we report the particle-in-cell (PIC) simulation of the interaction of the M-shape metasurface and 200-fs mid-IR laser pulses with high intensity. The simulation results suggest that localized lattice heating and explosions occur at a scale and in the relationship with the polarization consistent with the experimental data.

Conference Presentation

Citation Download Citation

Simin Zhang, Joseph Smith, Maxim Shcherbakov, Giovanni Sartorello, Michael Tripepi, Gennady Shvets, and Enam Chowdhury "Particle modeling of nanoscale ablation of resonant dielectric microstructures by Intense mid-IR laser-driven explosions", Proc. SPIE PC12726, Laser-Induced Damage in Optical Materials 2023, PC127260O (24 November 2023); https://doi.org/10.1117/12.2685251

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