Periodic nanoripples of tungsten on sapphire were grown using linearly-polarized femtosecond laser. The ripple orientation was found parallel to laser polarization. By scanning the substrate, we demonstrated tungsten grating with periodicity around 150 nm.
© 2006 Optical Society of America
(220.0220) Optical design and fabrication : Optical design and fabrication
(220.4000) Optical design and fabrication : Microstructure fabrication
(350.0350) Other areas of optics : Other areas of optics
(350.3390) Other areas of optics : Laser materials processing
H. Zhang, M. Tang, J. McCoy, and T. Her, "Growth of Periodic Tungsten Nanoripples Induced by Linearly Polarized Femtosecond Laser," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2006), paper JTuD6.
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