Title :
Micro-/nano-structuring of tungsten by ultrashort laser pulses
Author :
Zhao, Q.Z. ; Malzer, S. ; Wang, L.J.
Author_Institution :
Univ. Erlangen-Nuremberg, Erlangen
Abstract :
The evolution of surface morphology of tungsten resulting from irradiation of single beam 800 nm femtosecond laser pulses is investigated. The formation of mushroom-like nano-needles on both the ridge and the valley of the ripple structure, under special pulse energy and pulse number conditions are also presented.
Keywords :
high-speed optical techniques; laser materials processing; nanostructured materials; nanotechnology; surface morphology; tungsten; W; femtosecond laser pulses; microstructuring; mushroom-like nanoneedles; nanostructuring; ripple structure; single beam irradiation; surface morphology; tungsten; ultrashort laser pulses; wavelength 800 nm; Laser beams; Optical polarization; Optical pulses; Periodic structures; Photonics; Surface emitting lasers; Surface morphology; Surface structures; Tungsten; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4386681
