Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/5153
Título: Laser surfasse patterning using a Michelson interferometer and a femtosecond laser radiation
Autor: Oliveira, V.
Polushkin, N. I.
Conde, O.
Vilar, R.
Palavras-chave: Laser Patterning
Femtosecond Laser
Michelson Interferometer
Ultrashort-pulse laser
Ablation
Fabrication
Interference
Nanosecond
Titanium
Gratings
Silicon
Solids
Data: Out-2012
Editora: Elsevier Sci Ltd
Citação: OLIVEIRA, V.; [et al] – Laser surfasse patterning using a Michelson interferometer and a femtosecond laser radiation. Optics and Laser Technology. ISSN: 0030-3992. Vol. 44, nr. 7 (2012), pp. 2072-2075
Resumo: We report on a simple method to obtain surface gratings using a Michelson interferometer and femtosecond laser radiation. In the optical setup used, two parallel laser beams are generated using a beam splitter and then focused using the same focusing lens. An interference pattern is created in the focal plane of the focusing lens, which can be used to pattern the surface of materials. The main advantage of this method is that the optical paths difference of the interfering beams is independent of the distance between the beams. As a result, the fringes period can be varied without a need for major realignment of the optical system and the time coincidence between the interfering beams can be easily monitored. The potential of the method was demonstrated by patterning surface gratings with different periods on titanium surfaces in air.
Peer review: yes
URI: http://hdl.handle.net/10400.21/5153
DOI: 10.1016/j.optlastec.2012.03.024
ISSN: 0030-3992
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