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Modeling 2D and 3D periodic nanostructuring of materials with ultrafast laser pulses

Abstract : Generation of periodic arrangements of matter on materials irradiated by laser fields of uniform and isotropic energy distribution is a key issue in controlling laser structuring processes below the diffractive limit. Using 3D-FDTD methods, we evaluate energy deposition patterns below a material's rough surface and in bulk dielectric materials containing randomly distributed nano-inhomogeneities. We show that both surface and volume patterns can be attributed to spatially ordered electromagnetic solutions of linear and nonlinear Maxwell equations. Transient electronic response is also analyzed and show that for nonplasmonic metals, ultrafast carrier excitation can drastically affect electronic structures, driving a transient surface plasmonic state.
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Contributor : Jean-Philippe Colombier Connect in order to contact the contributor
Submitted on : Tuesday, February 19, 2019 - 9:20:34 PM
Last modification on : Sunday, June 26, 2022 - 12:10:50 PM
Long-term archiving on: : Monday, May 20, 2019 - 12:43:56 PM


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  • HAL Id : ujm-02018957, version 1



Jean-Philippe Colombier, Anton Rudenko, Emile Bévillon, Hao Zhang, Tatiana Itina, et al.. Modeling 2D and 3D periodic nanostructuring of materials with ultrafast laser pulses. Photonics West 2017, Jan 2017, San Francisco, United States. ⟨ujm-02018957⟩



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