Formation of Slantwise Surface Ripples by Femtosecond Laser Irradiation
We report on the formation of slantwise-oriented periodic subwavelength ripple structures on chromium surfaces irradiated by single-beam femtosecond laser pulses at normal incidence. Unexpectedly, the ripples slanted in opposite directions on each side the laser-scanned area, neither perpendicular n...
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doaj-3aad6fb230c442caa00e8105f776d00d2020-11-24T20:45:14ZengMDPI AGNanomaterials2079-49912018-06-018745810.3390/nano8070458nano8070458Formation of Slantwise Surface Ripples by Femtosecond Laser IrradiationXin Zheng0Cong Cong1Yuhao Lei2Jianjun Yang3Chunlei Guo4The Guo China-US Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaSchool of the Gifted Young, University of Science and Technology of China, Hefei 230026, ChinaThe Guo China-US Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaThe Guo China-US Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaThe Guo China-US Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaWe report on the formation of slantwise-oriented periodic subwavelength ripple structures on chromium surfaces irradiated by single-beam femtosecond laser pulses at normal incidence. Unexpectedly, the ripples slanted in opposite directions on each side the laser-scanned area, neither perpendicular nor parallel to the laser polarization. The modulation depth was also found to change from one ripple to the next ripple. A theoretical model is provided to explain our observations, and excellent agreement is shown between the simulations and the experimental results. Moreover, the validity of our theory is also confirmed on bulk chromium surfaces. Our study provides insights for better understanding and control of femtosecond laser nanostructuring.http://www.mdpi.com/2079-4991/8/7/458femtosecond laserlaser-induced periodic surface structuresanomalous slanting rippleschromium |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Xin Zheng Cong Cong Yuhao Lei Jianjun Yang Chunlei Guo |
spellingShingle |
Xin Zheng Cong Cong Yuhao Lei Jianjun Yang Chunlei Guo Formation of Slantwise Surface Ripples by Femtosecond Laser Irradiation Nanomaterials femtosecond laser laser-induced periodic surface structures anomalous slanting ripples chromium |
author_facet |
Xin Zheng Cong Cong Yuhao Lei Jianjun Yang Chunlei Guo |
author_sort |
Xin Zheng |
title |
Formation of Slantwise Surface Ripples by Femtosecond Laser Irradiation |
title_short |
Formation of Slantwise Surface Ripples by Femtosecond Laser Irradiation |
title_full |
Formation of Slantwise Surface Ripples by Femtosecond Laser Irradiation |
title_fullStr |
Formation of Slantwise Surface Ripples by Femtosecond Laser Irradiation |
title_full_unstemmed |
Formation of Slantwise Surface Ripples by Femtosecond Laser Irradiation |
title_sort |
formation of slantwise surface ripples by femtosecond laser irradiation |
publisher |
MDPI AG |
series |
Nanomaterials |
issn |
2079-4991 |
publishDate |
2018-06-01 |
description |
We report on the formation of slantwise-oriented periodic subwavelength ripple structures on chromium surfaces irradiated by single-beam femtosecond laser pulses at normal incidence. Unexpectedly, the ripples slanted in opposite directions on each side the laser-scanned area, neither perpendicular nor parallel to the laser polarization. The modulation depth was also found to change from one ripple to the next ripple. A theoretical model is provided to explain our observations, and excellent agreement is shown between the simulations and the experimental results. Moreover, the validity of our theory is also confirmed on bulk chromium surfaces. Our study provides insights for better understanding and control of femtosecond laser nanostructuring. |
topic |
femtosecond laser laser-induced periodic surface structures anomalous slanting ripples chromium |
url |
http://www.mdpi.com/2079-4991/8/7/458 |
work_keys_str_mv |
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1716814994252759040 |