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Unravelling ultrashort laser excitation of nickel at 800 nm wavelength

Autor: Genieys, T, Petrakakis, M, Tsibidis, G, Sentis, M, Utéza, O

Publikováno v: Journal of Physics D: Applied Physics, IOP Publishing, 2021, 54 (49), pp.495302

The optical response of nickel is studied in a wide range of laser fluence, below and above the ablation threshold, by selfreflectivity measurements of ultrashort 800nm single laser pulses. At the ablation threshold, the reflectivity remains unchange

Externí odkaz: http://arxiv.org/abs/2111.02089

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Investigation of ultrashort laser excitation of aluminum and tungsten by reflectivity measurements

Autor: Genieys, T., Sentis, M., Utéza, O.

Publikováno v: Applied physics. A, Materials science & processing, Springer Verlag, 2020, 126 (4)

We determine the laser-induced ablation threshold fluence in air of aluminum and tungsten excited by single near-infrared laser pulses with duration ranging from 15 fs to 100 fs. The ablation threshold fluence is shown constant for both metals, exten

Externí odkaz: http://arxiv.org/abs/2010.16157

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Gallium transformation under femtosecond laser excitation: Phase coexistence and incomplete melting

Autor: Uteza, O. P., Gamaly, E. G., Rode, A. V., Samoc, M., Luther-Davies, B.

The reversible phase transition induced by femtosecond laser excitation of Gallium has been studied by measuring the dielectric function at 775 nm with ~ 200 fs temporal resolution. The real and imaginary parts of the transient dielectric function we

Externí odkaz: http://arxiv.org/abs/physics/0311010

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