Formation of Subwavelength Periodic Triangular Arrays on Tungsten through Double-Pulsed Femtosecond Laser Irradiation
文献类型：期刊论文
| 作者 | Qiao, H. Z.; Yang, J. J.; Li, J.; Liu, Q. ; Liu, J.; Guo, C. L.
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| 刊名 | Materials
 |
| 出版日期 | 2018 |
| 卷号 | 11期号:12页码:9 |
| 关键词 | time-delayed femtosecond lasers orthogonal polarizations subwavelength triangular structures tungsten surface-structures photonic crystals fabrication nanostructures lithography plasmonics Materials Science |
| ISSN号 | 1996-1944 |
| DOI | 10.3390/ma11122380 |
| 英文摘要 | We present a mask-free strategy for fabricating two-dimensional subwavelength periodic triangular arrays on tungsten, by focusing two orthogonally polarized and temporally delayed femtosecond laser beams using a cylindrical lens. In stark contrast to the commonly observed structures of either a single ablation spot or a one-dimensional grating, we obtained highly uniform periodic triangular arrays on the laser-exposed surface, with three equilateral sides each of 480 nm in length and about 100 nm in modulation depth. The triangular features varied with both the laser energy and the scanning speed. We found that the optical reflectivity of such a surface reduces significantly within the spectral range of 700-2500 nm. The triangular structure morphology can also be controlled by varying the time delay between the two laser beams. |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/61000]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | Qiao, H. Z.,Yang, J. J.,Li, J.,et al. Formation of Subwavelength Periodic Triangular Arrays on Tungsten through Double-Pulsed Femtosecond Laser Irradiation[J]. Materials,2018,11(12):9. |
| APA | Qiao, H. Z.,Yang, J. J.,Li, J.,Liu, Q.,Liu, J.,&Guo, C. L..(2018).Formation of Subwavelength Periodic Triangular Arrays on Tungsten through Double-Pulsed Femtosecond Laser Irradiation.Materials,11(12),9. |
| MLA | Qiao, H. Z.,et al."Formation of Subwavelength Periodic Triangular Arrays on Tungsten through Double-Pulsed Femtosecond Laser Irradiation".Materials 11.12(2018):9. |
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