Light absorption by surface nanoholes and nanobumps

Abstract : This paper deals with a numerical investigation of the energy deposition induced by ultrafast laser interaction with nanostructures. We calculate and analyze the intensity near-field reactive and radiative patterns resulted from the interference of the incident light with light scattered by individual subwavelength holes and bumps on the surface of metallic and dielectric materials. The role of light polarization, optical material properties, collective effects and nature of the imperfections in localized energy absorption is elucidated. The results open new perspectives in precise light manipulation by surface inhomogeneities and well-controlled surface nanostructuring by ultrashort laser.
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https://hal-ujm.archives-ouvertes.fr/ujm-02046693
Contributor : Jean-Philippe Colombier <>
Submitted on : Friday, February 22, 2019 - 6:25:14 PM
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A Rudenko, C. Mauclair, F. Garrelie, R. Stoian, Jean-Philippe Colombier. Light absorption by surface nanoholes and nanobumps. Applied Surface Science, Elsevier, 2018. ⟨ujm-02046693⟩

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