Adjustment of Subwavelength Rippled Structures on Titanium by Two-Step Fabrication Using Femtosecond Laser Pulses
An effective approach is proposed to adjust the surface morphology induced by using a femtosecond laser, including the area and period of rippled structures. The effect of the processing steps and laser polarization on the surface morphology of rippled structures on a titanium surface was experiment...
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doaj-0b107752cf3a4350adc2385ae5c24e032021-03-05T00:00:34ZengMDPI AGApplied Sciences2076-34172021-03-01112250225010.3390/app11052250Adjustment of Subwavelength Rippled Structures on Titanium by Two-Step Fabrication Using Femtosecond Laser PulsesYanping Yuan0Xinyang Guo1Yitong Shang2Jimin Chen3Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, ChinaFaculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, ChinaBeijing Institute of 3D Printing, Beijing City University, Beijing 100083, ChinaFaculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, ChinaAn effective approach is proposed to adjust the surface morphology induced by using a femtosecond laser, including the area and period of rippled structures. The effect of the processing steps and laser polarization on the surface morphology of rippled structures on a titanium surface was experimentally investigated in this study. A processing sequence was designed for two series of femtosecond laser pulses that irradiate a titanium surface, for example, N = 50(0°) + 50(90°). The experimental results show that the area and period of rippled structures can be simultaneously adjusted by following a two-step method. Due to the enhancement of energy absorption and SP-laser coupling of the initial rippled structures, large area surface structures with small periods are fabricated using two series of femtosecond laser pulses with the same polarization direction. By changing the polarization direction of the two series of femtosecond laser pulses, the recording, erasing, and rewriting of subwavelength ripples is achieved. During the rewriting process, material removal and the formation of new ripples simultaneously occur.https://www.mdpi.com/2076-3417/11/5/2250surface morphologysubwavelength ripplesfemtosecond lasertwo-step method |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yanping Yuan Xinyang Guo Yitong Shang Jimin Chen |
spellingShingle |
Yanping Yuan Xinyang Guo Yitong Shang Jimin Chen Adjustment of Subwavelength Rippled Structures on Titanium by Two-Step Fabrication Using Femtosecond Laser Pulses Applied Sciences surface morphology subwavelength ripples femtosecond laser two-step method |
author_facet |
Yanping Yuan Xinyang Guo Yitong Shang Jimin Chen |
author_sort |
Yanping Yuan |
title |
Adjustment of Subwavelength Rippled Structures on Titanium by Two-Step Fabrication Using Femtosecond Laser Pulses |
title_short |
Adjustment of Subwavelength Rippled Structures on Titanium by Two-Step Fabrication Using Femtosecond Laser Pulses |
title_full |
Adjustment of Subwavelength Rippled Structures on Titanium by Two-Step Fabrication Using Femtosecond Laser Pulses |
title_fullStr |
Adjustment of Subwavelength Rippled Structures on Titanium by Two-Step Fabrication Using Femtosecond Laser Pulses |
title_full_unstemmed |
Adjustment of Subwavelength Rippled Structures on Titanium by Two-Step Fabrication Using Femtosecond Laser Pulses |
title_sort |
adjustment of subwavelength rippled structures on titanium by two-step fabrication using femtosecond laser pulses |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2021-03-01 |
description |
An effective approach is proposed to adjust the surface morphology induced by using a femtosecond laser, including the area and period of rippled structures. The effect of the processing steps and laser polarization on the surface morphology of rippled structures on a titanium surface was experimentally investigated in this study. A processing sequence was designed for two series of femtosecond laser pulses that irradiate a titanium surface, for example, N = 50(0°) + 50(90°). The experimental results show that the area and period of rippled structures can be simultaneously adjusted by following a two-step method. Due to the enhancement of energy absorption and SP-laser coupling of the initial rippled structures, large area surface structures with small periods are fabricated using two series of femtosecond laser pulses with the same polarization direction. By changing the polarization direction of the two series of femtosecond laser pulses, the recording, erasing, and rewriting of subwavelength ripples is achieved. During the rewriting process, material removal and the formation of new ripples simultaneously occur. |
topic |
surface morphology subwavelength ripples femtosecond laser two-step method |
url |
https://www.mdpi.com/2076-3417/11/5/2250 |
work_keys_str_mv |
AT yanpingyuan adjustmentofsubwavelengthrippledstructuresontitaniumbytwostepfabricationusingfemtosecondlaserpulses AT xinyangguo adjustmentofsubwavelengthrippledstructuresontitaniumbytwostepfabricationusingfemtosecondlaserpulses AT yitongshang adjustmentofsubwavelengthrippledstructuresontitaniumbytwostepfabricationusingfemtosecondlaserpulses AT jiminchen adjustmentofsubwavelengthrippledstructuresontitaniumbytwostepfabricationusingfemtosecondlaserpulses |
_version_ |
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