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Periodical Gratings in Mixed‐Oxide Films by Laser‐Interference Irradiation
Author(s) -
Lasagni A.,
Seyler M.,
Holzapfel C.,
Maier W. F.,
Mücklich F.
Publication year - 2005
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200402074
Subject(s) - materials science , laser , fluence , homogeneity (statistics) , irradiation , oxide , optics , interference (communication) , white light , optoelectronics , interferometry , channel (broadcasting) , physics , electrical engineering , nuclear physics , metallurgy , engineering , statistics , mathematics
Laser‐interference structuring of sol–gel films without organic photopolymerization provides a single‐step method for the production of periodic surface structures (see Figure) in titania–silica mixed‐oxide films. The dependency of the structure depth and homogeneity, measured by white‐light interferometry, on process parameters such as laser fluence and number of laser pulses has been evaluated. A mechanism for structure formation is proposed.