We demonstrate the morphology conversion of surface microstructures on silicon induced by femtosecond vector vortex beams. By tuning the topological charge of the vortex phase carried by the vector beam, we achieve the transition of ablation crater between subwavelength ripples and hole, and the switching of ripple orientation. It is shown that the vortex phases give rise to the converting of the two polarization components of the focused vector beams, and produce dramatically different polarization and intensity distributions in the focal fields. Such vortex-dependent focal fields of femtosecond vector beams are experimentally generated to realize the morphology conversion of surface microstructures on silicon. Our results not only enable the realization of manipulating the laser-induced morphology but also support the visualized mapping of the polarization state of the focused vector beams.
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2 October 2017
Research Article|
October 02 2017
Vortex-controlled morphology conversion of microstructures on silicon induced by femtosecond vector vortex beams
Huachao Cheng;
Huachao Cheng
a)
1
MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, and Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University
, Xi'an 710072, China
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Peng Li;
Peng Li
a)
1
MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, and Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University
, Xi'an 710072, China
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Sheng Liu;
Sheng Liu
b)
1
MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, and Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University
, Xi'an 710072, China
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Peng Chen
;
Peng Chen
2
National Laboratory of Solid State Microstructures and College of Engineering and Applied Sciences, Nanjing University
, Nanjing 210093, China
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Lei Han;
Lei Han
1
MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, and Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University
, Xi'an 710072, China
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Yi Zhang;
Yi Zhang
1
MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, and Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University
, Xi'an 710072, China
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Wei Hu
;
Wei Hu
2
National Laboratory of Solid State Microstructures and College of Engineering and Applied Sciences, Nanjing University
, Nanjing 210093, China
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Jianlin Zhao
Jianlin Zhao
b)
1
MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, and Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University
, Xi'an 710072, China
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a)
H. Cheng and P. Li contributed equally to this work.
b)
Electronic addresses: shengliu@nwpu.edu.cn and jlzhao@nwpu.edu.cn
Appl. Phys. Lett. 111, 141901 (2017)
Article history
Received:
July 08 2017
Accepted:
September 19 2017
Citation
Huachao Cheng, Peng Li, Sheng Liu, Peng Chen, Lei Han, Yi Zhang, Wei Hu, Jianlin Zhao; Vortex-controlled morphology conversion of microstructures on silicon induced by femtosecond vector vortex beams. Appl. Phys. Lett. 2 October 2017; 111 (14): 141901. https://doi.org/10.1063/1.4994926
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