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24 May 2022 Femtosecond LIPSS on indium-tin-oxide thin films at IR wavelengths
Balázs Bánhegyi, László Péter, Péter Dombi, Zsuzsanna Pápa
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Proceedings Volume 12131, Nanophotonics IX; 1213106 (2022) https://doi.org/10.1117/12.2620645
Event: SPIE Photonics Europe, 2022, Strasbourg, France
Abstract
In our work we focused femtosecond laser pulses in the infrared region onto conducting indium-tin-oxide (ITO) thin films. We observed laser induced periodic surface structures (LIPSS) with increasing periodicity close to λ/10 scaling. We conducted supporting finite-difference time-domain calculations to investigate the origin of these morphologies. The results suggest that the surface forms are rooted in the field localization in the surface pits leading to a periodically increased absorption of the laser pulse energy that creates the observed periodic structures.
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Balázs Bánhegyi, László Péter, Péter Dombi, and Zsuzsanna Pápa "Femtosecond LIPSS on indium-tin-oxide thin films at IR wavelengths", Proc. SPIE 12131, Nanophotonics IX, 1213106 (24 May 2022); https://doi.org/10.1117/12.2620645
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KEYWORDS
Femtosecond phenomena
Thin films
Scanning electron microscopy
Infrared radiation
Finite-difference time-domain method
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