Throughput Improvement in Femtosecond Laser Ablation of Nickel by Double Pulses
In this study, femtosecond laser double pulses were tested to improve their nickel ablation efficiency. The experimental results indicated that compared with single pulses, double pulses with different delay times generated craters with larger diameters and depths. The results obtained for three set...
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MDPI AG
2021-10-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/21/6355 |
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| author | Kunpeng Chu Baoshan Guo Lan Jiang Yanhong Hua Shuai Gao Jingang Jia Ningwei Zhan |
| author_facet | Kunpeng Chu Baoshan Guo Lan Jiang Yanhong Hua Shuai Gao Jingang Jia Ningwei Zhan |
| author_sort | Kunpeng Chu |
| collection | DOAJ |
| description | In this study, femtosecond laser double pulses were tested to improve their nickel ablation efficiency. The experimental results indicated that compared with single pulses, double pulses with different delay times generated craters with larger diameters and depths. The results obtained for three sets of double pulses with different energy ratios indicated that double pulses with an energy ratio of 1:9 had the highest ablation efficiency, followed by those with energy ratios of 2:8 and 5:5. The double pulses with the aforementioned three energy ratios achieved the maximum ablation efficiency when the delay time was 3–4 ps. Compared with single pulses, double pulses with an energy ratio of 1:9 generated craters with an up to 34% greater depth and up to 14% larger diameter. In addition, an interference effect was observed with a double pulse delay time of 0 ps, which has seldom been reported in the literature. The double pulses were simulated using the two-temperature model. The simulation results indicated that double pulses with an energy ratio of 1:9 with a delay time of 4 ps can perform the strongest ablation. These simulation results are in line with the experimental results. |
| first_indexed | 2024-03-10T05:58:50Z |
| format | Article |
| id | doaj.art-7e00c44856da4996afa9dd675e24af51 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T05:58:50Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
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| series | Materials |
| spelling | doaj.art-7e00c44856da4996afa9dd675e24af512023-11-22T21:10:53ZengMDPI AGMaterials1996-19442021-10-011421635510.3390/ma14216355Throughput Improvement in Femtosecond Laser Ablation of Nickel by Double PulsesKunpeng Chu0Baoshan Guo1Lan Jiang2Yanhong Hua3Shuai Gao4Jingang Jia5Ningwei Zhan6Laser Micro/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaLaser Micro/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaLaser Micro/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaLaser Micro/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaLaser Micro/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaLaser Micro/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaLaser Micro/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaIn this study, femtosecond laser double pulses were tested to improve their nickel ablation efficiency. The experimental results indicated that compared with single pulses, double pulses with different delay times generated craters with larger diameters and depths. The results obtained for three sets of double pulses with different energy ratios indicated that double pulses with an energy ratio of 1:9 had the highest ablation efficiency, followed by those with energy ratios of 2:8 and 5:5. The double pulses with the aforementioned three energy ratios achieved the maximum ablation efficiency when the delay time was 3–4 ps. Compared with single pulses, double pulses with an energy ratio of 1:9 generated craters with an up to 34% greater depth and up to 14% larger diameter. In addition, an interference effect was observed with a double pulse delay time of 0 ps, which has seldom been reported in the literature. The double pulses were simulated using the two-temperature model. The simulation results indicated that double pulses with an energy ratio of 1:9 with a delay time of 4 ps can perform the strongest ablation. These simulation results are in line with the experimental results.https://www.mdpi.com/1996-1944/14/21/6355femtosecond laserdouble pulsesnickeltwo-temperature model |
| spellingShingle | Kunpeng Chu Baoshan Guo Lan Jiang Yanhong Hua Shuai Gao Jingang Jia Ningwei Zhan Throughput Improvement in Femtosecond Laser Ablation of Nickel by Double Pulses Materials femtosecond laser double pulses nickel two-temperature model |
| title | Throughput Improvement in Femtosecond Laser Ablation of Nickel by Double Pulses |
| title_full | Throughput Improvement in Femtosecond Laser Ablation of Nickel by Double Pulses |
| title_fullStr | Throughput Improvement in Femtosecond Laser Ablation of Nickel by Double Pulses |
| title_full_unstemmed | Throughput Improvement in Femtosecond Laser Ablation of Nickel by Double Pulses |
| title_short | Throughput Improvement in Femtosecond Laser Ablation of Nickel by Double Pulses |
| title_sort | throughput improvement in femtosecond laser ablation of nickel by double pulses |
| topic | femtosecond laser double pulses nickel two-temperature model |
| url | https://www.mdpi.com/1996-1944/14/21/6355 |
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