Chinese Optics Letters, 2016, 14 (12): 123202, Published Online: Aug. 2, 2018
Subwavelength ripple formation on planar and nonplanar surfaces by femtosecond laser scanning Download: 648次
320.2250 Femtosecond phenomena 310.6628 Subwavelength structures,nanostructures 220.4000 Microstructure fabrication 350.3390 Laser materials processing
Abstract
The self-formation of periodic subwavelength ripples by linear polarized femtosecond laser scanning planar and non-planar tungsten targets on the employed laser wavelength, scanning speed, and energy fluence are examined systematically. The results show that, for a certain laser wavelength, the scanning conditions have no obvious effect to the morphological features of grating structures in the threshold range of laser fluence. The spatial structured period of gratings can be self-consistently interpreted by recently presented physical model of surface two-plasmon resonance. The subwavelength structures on cylindrical surface would be a good method to realize unique surface functions on complex surface of micro-devices.
Haiying Song, Yanjie Zhang, Xiangming Dong, Shibing Liu. Subwavelength ripple formation on planar and nonplanar surfaces by femtosecond laser scanning[J]. Chinese Optics Letters, 2016, 14(12): 123202.