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arXiv · 1402.4998

Modelling and experiments of self-reflectivity under femtosecond ablation conditions

H. Zhang·S. A. Wolbers·D. M. Krol·J. I. Dijkhuis·D. van Oosten
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Abstract

We present a numerical model which describes the propagation of a single femtosecond laser pulse in a medium of which the optical properties dynamically change within the duration of the pulse. We use a Finite Difference Time Domain (FDTD) method to solve the Maxwell's equations coupled to equations describing the changes in the material properties. We use the model to simulate the self-reflectivity of strongly focused femtosecond laser pulses on silicon and gold under laser ablation condition. We compare the simulations to experimental results and find excellent agreement.

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H. Zhang, S. A. Wolbers, D. M. Krol, J. I. Dijkhuis, D. van Oosten. 2014-02-20. Modelling and experiments of self-reflectivity under femtosecond ablation conditions. https://doi.org/10.1364/josab.32.000606

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