Sub-wavelength periodic surface structures in titanium dioxide with periods of 170 and 90 nm were generated with 150 fs pulses at 800 and 400 nm, respectively. Formation mechanisms and conditions for large-area patterning are discussed.
© 2009 The Optical Society
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3390) Lasers and laser optics : Laser materials processing
(160.0160) Materials : Materials
(160.4236) Materials : Nanomaterials
S. K. Das, D. Dufft, M. Bock, A. Rosenfeld, J. Bonse, and R. Grunwald, "Femtosecond-Laser Induced Sub-200 nm Structures in TiO<sup>2</sup> <sup/>," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference, OSA Technical Digest (CD) (Optical Society of America, 2009), paper JWA1.
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