Title :
Growth of periodic tungsten nanoripples induced by linearly polarized femtosecond laser
Author :
Zhang, Haitao ; Tang, Mingzhen ; McCoy, Jerry ; Her, Tsing-Hua
Author_Institution :
Center for Optoelectron. & Opt. Commun., Univ. of North Carolina, Charlotte, NC
Abstract :
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.
Keywords :
diffraction gratings; high-speed optical techniques; laser materials processing; light polarisation; nanostructured materials; tungsten; Al2O3; W-Al2O3; femtosecond laser; laser polarization; linearly polarized laser; periodic nanoripples; ripple orientation; sapphire; tungsten grating; Atomic force microscopy; Laser noise; Laser transitions; Polarization; Power lasers; Scanning electron microscopy; Semiconductor lasers; Substrates; Tungsten; Ultrafast optics; (220.4000) Microstructure fabrication; (350.3390) Laser materials processing;
Conference_Titel :
Lasers and Electro-Optics, 2006 and 2006 Quantum Electronics and Laser Science Conference. CLEO/QELS 2006. Conference on
Conference_Location :
Long Beach, CA
Print_ISBN :
978-1-55752-813-1
Electronic_ISBN :
978-1-55752-813-1
DOI :
10.1109/CLEO.2006.4628652
