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Numerical Investigation of Enhanced High-Intensity Laser-Matter Interactions in Nanowire-Coated Conical Targets
Laura Ionel1, Cristian Viespe1
1Laser Department, National Institute for Laser, Plasma and Radiation Physics, Atomistilor Str. 409, 077125 Magurele, Romania.
Nanomaterials (Basel, Switzerland)
|December 10, 2025
Summary
Nanostructured conical targets significantly enhance laser absorption and energy coupling in high-power experiments. Their tailored surfaces control laser field intensification, optimizing ultraintense laser applications for extreme field concentrations.
Area of Science:
- Physics
- Materials Science
- Laser Engineering
Background:
- Nanostructured targets enhance laser absorption and particle generation in high-power laser-matter interactions.
- Tailored surface features of nanostructures improve energy deposition compared to flat targets.
Purpose of the Study:
- To numerically investigate laser field intensification mechanisms with nanostructured conical targets.
- To determine optimal conditions for laser field enrichment in laser-solid target interactions.
Main Methods:
- Developed a 2D finite-difference time-domain model for spatio-temporal laser intensity evolution.
- Simulated interactions with four different nanopatterned conical target materials and variable laser parameters.
Main Results:
- Nanostructured conical target walls induce controllable increases in laser field intensity.
- Enhanced field localization achieved under specific conditions.
Conclusions:
- Nanostructured target design is crucial for efficient energy coupling in ultraintense laser applications.
- Optimized nanostructures enable extreme field concentrations for advanced laser-matter interactions.
